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added_tokens.json ADDED
@@ -0,0 +1,28 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "</think>": 151668,
3
+ "</tool_call>": 151658,
4
+ "</tool_response>": 151666,
5
+ "<think>": 151667,
6
+ "<tool_call>": 151657,
7
+ "<tool_response>": 151665,
8
+ "<|box_end|>": 151649,
9
+ "<|box_start|>": 151648,
10
+ "<|endoftext|>": 151643,
11
+ "<|file_sep|>": 151664,
12
+ "<|fim_middle|>": 151660,
13
+ "<|fim_pad|>": 151662,
14
+ "<|fim_prefix|>": 151659,
15
+ "<|fim_suffix|>": 151661,
16
+ "<|im_end|>": 151645,
17
+ "<|im_start|>": 151644,
18
+ "<|image_pad|>": 151655,
19
+ "<|object_ref_end|>": 151647,
20
+ "<|object_ref_start|>": 151646,
21
+ "<|quad_end|>": 151651,
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+ "<|quad_start|>": 151650,
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+ "<|repo_name|>": 151663,
24
+ "<|video_pad|>": 151656,
25
+ "<|vision_end|>": 151653,
26
+ "<|vision_pad|>": 151654,
27
+ "<|vision_start|>": 151652
28
+ }
chat_template.jinja ADDED
@@ -0,0 +1,85 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {%- if tools %}
2
+ {{- '<|im_start|>system\n' }}
3
+ {%- if messages[0].role == 'system' %}
4
+ {{- messages[0].content + '\n\n' }}
5
+ {%- endif %}
6
+ {{- "# Tools\n\nYou may call one or more functions to assist with the user query.\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>" }}
7
+ {%- for tool in tools %}
8
+ {{- "\n" }}
9
+ {{- tool | tojson }}
10
+ {%- endfor %}
11
+ {{- "\n</tools>\n\nFor each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:\n<tool_call>\n{\"name\": <function-name>, \"arguments\": <args-json-object>}\n</tool_call><|im_end|>\n" }}
12
+ {%- else %}
13
+ {%- if messages[0].role == 'system' %}
14
+ {{- '<|im_start|>system\n' + messages[0].content + '<|im_end|>\n' }}
15
+ {%- endif %}
16
+ {%- endif %}
17
+ {%- set ns = namespace(multi_step_tool=true, last_query_index=messages|length - 1) %}
18
+ {%- for message in messages[::-1] %}
19
+ {%- set index = (messages|length - 1) - loop.index0 %}
20
+ {%- if ns.multi_step_tool and message.role == "user" and not(message.content.startswith('<tool_response>') and message.content.endswith('</tool_response>')) %}
21
+ {%- set ns.multi_step_tool = false %}
22
+ {%- set ns.last_query_index = index %}
23
+ {%- endif %}
24
+ {%- endfor %}
25
+ {%- for message in messages %}
26
+ {%- if (message.role == "user") or (message.role == "system" and not loop.first) %}
27
+ {{- '<|im_start|>' + message.role + '\n' + message.content + '<|im_end|>' + '\n' }}
28
+ {%- elif message.role == "assistant" %}
29
+ {%- set content = message.content %}
30
+ {%- set reasoning_content = '' %}
31
+ {%- if message.reasoning_content is defined and message.reasoning_content is not none %}
32
+ {%- set reasoning_content = message.reasoning_content %}
33
+ {%- else %}
34
+ {%- if '</think>' in message.content %}
35
+ {%- set content = message.content.split('</think>')[-1].lstrip('\n') %}
36
+ {%- set reasoning_content = message.content.split('</think>')[0].rstrip('\n').split('<think>')[-1].lstrip('\n') %}
37
+ {%- endif %}
38
+ {%- endif %}
39
+ {%- if loop.index0 > ns.last_query_index %}
40
+ {%- if loop.last or (not loop.last and reasoning_content) %}
41
+ {{- '<|im_start|>' + message.role + '\n<think>\n' + reasoning_content.strip('\n') + '\n</think>\n\n' + content.lstrip('\n') }}
42
+ {%- else %}
43
+ {{- '<|im_start|>' + message.role + '\n' + content }}
44
+ {%- endif %}
45
+ {%- else %}
46
+ {{- '<|im_start|>' + message.role + '\n' + content }}
47
+ {%- endif %}
48
+ {%- if message.tool_calls %}
49
+ {%- for tool_call in message.tool_calls %}
50
+ {%- if (loop.first and content) or (not loop.first) %}
51
+ {{- '\n' }}
52
+ {%- endif %}
53
+ {%- if tool_call.function %}
54
+ {%- set tool_call = tool_call.function %}
55
+ {%- endif %}
56
+ {{- '<tool_call>\n{"name": "' }}
57
+ {{- tool_call.name }}
58
+ {{- '", "arguments": ' }}
59
+ {%- if tool_call.arguments is string %}
60
+ {{- tool_call.arguments }}
61
+ {%- else %}
62
+ {{- tool_call.arguments | tojson }}
63
+ {%- endif %}
64
+ {{- '}\n</tool_call>' }}
65
+ {%- endfor %}
66
+ {%- endif %}
67
+ {{- '<|im_end|>\n' }}
68
+ {%- elif message.role == "tool" %}
69
+ {%- if loop.first or (messages[loop.index0 - 1].role != "tool") %}
70
+ {{- '<|im_start|>user' }}
71
+ {%- endif %}
72
+ {{- '\n<tool_response>\n' }}
73
+ {{- message.content }}
74
+ {{- '\n</tool_response>' }}
75
+ {%- if loop.last or (messages[loop.index0 + 1].role != "tool") %}
76
+ {{- '<|im_end|>\n' }}
77
+ {%- endif %}
78
+ {%- endif %}
79
+ {%- endfor %}
80
+ {%- if add_generation_prompt %}
81
+ {{- '<|im_start|>assistant\n' }}
82
+ {%- if enable_thinking is defined and enable_thinking is false %}
83
+ {{- '<think>\n\n</think>\n\n' }}
84
+ {%- endif %}
85
+ {%- endif %}
config.json ADDED
@@ -0,0 +1,114 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "architectures": [
3
+ "TinyLlavaForConditionalGeneration"
4
+ ],
5
+ "cache_dir": null,
6
+ "connector_type": "mlp2x_gelu",
7
+ "hidden_size": 1024,
8
+ "ignore_index": -100,
9
+ "image_aspect_ratio": "square",
10
+ "image_token_index": -200,
11
+ "llm_model_name_or_path": "Qwen/Qwen3-0.6B-base",
12
+ "model_type": "tinyllava",
13
+ "auto_map": {
14
+ "AutoConfig": "configuration.TinyLlavaConfig",
15
+ "AutoModelForCausalLM": "modeling_tinyllava_qwen3.TinyLlavaForConditionalGeneration"
16
+ },
17
+ "num_queries": 128,
18
+ "num_resampler_layers": 3,
19
+ "pad_token": "<|endoftext|>",
20
+ "pad_token_id": 151643,
21
+ "resampler_hidden_size": 768,
22
+ "text_config": {
23
+ "_name_or_path": "Qwen/Qwen3-0.6B-base",
24
+ "architectures": [
25
+ "Qwen3ForCausalLM"
26
+ ],
27
+ "attention_bias": false,
28
+ "attention_dropout": 0.0,
29
+ "bos_token_id": 151643,
30
+ "eos_token_id": 151643,
31
+ "head_dim": 128,
32
+ "hidden_act": "silu",
33
+ "hidden_size": 1024,
34
+ "initializer_range": 0.02,
35
+ "intermediate_size": 3072,
36
+ "layer_types": [
37
+ "full_attention",
38
+ "full_attention",
39
+ "full_attention",
40
+ "full_attention",
41
+ "full_attention",
42
+ "full_attention",
43
+ "full_attention",
44
+ "full_attention",
45
+ "full_attention",
46
+ "full_attention",
47
+ "full_attention",
48
+ "full_attention",
49
+ "full_attention",
50
+ "full_attention",
51
+ "full_attention",
52
+ "full_attention",
53
+ "full_attention",
54
+ "full_attention",
55
+ "full_attention",
56
+ "full_attention",
57
+ "full_attention",
58
+ "full_attention",
59
+ "full_attention",
60
+ "full_attention",
61
+ "full_attention",
62
+ "full_attention",
63
+ "full_attention",
64
+ "full_attention"
65
+ ],
66
+ "max_position_embeddings": 32768,
67
+ "max_window_layers": 28,
68
+ "model_type": "qwen3",
69
+ "num_attention_heads": 16,
70
+ "num_hidden_layers": 28,
71
+ "num_key_value_heads": 8,
72
+ "rms_norm_eps": 1e-06,
73
+ "rope_scaling": null,
74
+ "rope_theta": 1000000,
75
+ "sliding_window": null,
76
+ "tie_word_embeddings": true,
77
+ "torch_dtype": "bfloat16",
78
+ "use_cache": true,
79
+ "use_sliding_window": false,
80
+ "vocab_size": 151936
81
+ },
82
+ "tokenizer_model_max_length": 2048,
83
+ "tokenizer_name_or_path": "Qwen/Qwen3-0.6B-base",
84
+ "tokenizer_padding_side": "right",
85
+ "tokenizer_use_fast": false,
86
+ "torch_dtype": "bfloat16",
87
+ "transformers_version": "4.55.2",
88
+ "tune_type_connector": "full",
89
+ "tune_type_llm": "full",
90
+ "tune_type_vision_tower": "frozen",
91
+ "tune_vision_tower_from_layer": 0,
92
+ "use_cache": true,
93
+ "vision_config": {
94
+ "attention_dropout": 0.0,
95
+ "hidden_act": "gelu_pytorch_tanh",
96
+ "hidden_size": 1152,
97
+ "image_size": 384,
98
+ "intermediate_size": 4304,
99
+ "layer_norm_eps": 1e-06,
100
+ "model_name_or_path": "google/siglip2-so400m-patch14-384",
101
+ "model_name_or_path2": "",
102
+ "model_type": "siglip_vision_model",
103
+ "num_attention_heads": 16,
104
+ "num_channels": 3,
105
+ "num_hidden_layers": 27,
106
+ "patch_size": 14
107
+ },
108
+ "vision_feature_layer": -2,
109
+ "vision_feature_select_strategy": "patch",
110
+ "vision_hidden_size": 1152,
111
+ "vision_model_name_or_path": "google/siglip2-so400m-patch14-384",
112
+ "vision_model_name_or_path2": "",
113
+ "vocab_size": 151936
114
+ }
configuration.py ADDED
@@ -0,0 +1,119 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ from transformers import PretrainedConfig
2
+ from transformers import CONFIG_MAPPING
3
+ from transformers import AutoConfig
4
+
5
+ IGNORE_INDEX = -100
6
+ IMAGE_TOKEN_INDEX = -200
7
+ DEFAULT_IMAGE_TOKEN = "<image>"
8
+
9
+
10
+ class TinyLlavaConfig(PretrainedConfig):
11
+
12
+ model_type = "tinyllava"
13
+ def __init__(
14
+ self,
15
+ llm_model_name_or_path = '',
16
+ tokenizer_name_or_path = None,
17
+ vision_model_name_or_path = '',
18
+ vision_model_name_or_path2 = '',
19
+ connector_type = None,
20
+ text_config=None,
21
+ hidden_size=2048,
22
+ vocab_size=32000,
23
+ ignore_index=-100,
24
+ image_token_index=32000,
25
+ pad_token = None,
26
+ pad_token_id = None,
27
+ tokenizer_padding_side = 'right',
28
+ tokenizer_model_max_length = 2048,
29
+ vision_config = None,
30
+ vision_hidden_size = None,
31
+ vision_feature_layer = -2,
32
+ vision_feature_select_strategy = 'patch',
33
+ image_aspect_ratio = 'square',
34
+ resampler_hidden_size = None,
35
+ num_queries = None,
36
+ num_resampler_layers = None,
37
+ use_cache = False,
38
+ cache_dir = None,
39
+ tokenizer_use_fast = False,
40
+ tune_type_llm = 'frozen',
41
+ tune_type_connector = 'frozen',
42
+ tune_type_vision_tower = 'frozen',
43
+ tune_vision_tower_from_layer = -1,
44
+
45
+ **kwargs
46
+
47
+ ):
48
+ self.llm_model_name_or_path = llm_model_name_or_path
49
+ self.tokenizer_name_or_path = tokenizer_name_or_path or self.llm_model_name_or_path
50
+ self.vision_model_name_or_path = vision_model_name_or_path
51
+ self.vision_model_name_or_path2 = vision_model_name_or_path2
52
+ self.connector_type = connector_type
53
+ self.tune_type_llm = tune_type_llm
54
+ self.tune_type_connector = tune_type_connector
55
+ self.tune_type_vision_tower = tune_type_vision_tower
56
+ self.tune_vision_tower_from_layer = tune_vision_tower_from_layer
57
+
58
+ self.ignore_index = IGNORE_INDEX
59
+ self.image_token_index = IMAGE_TOKEN_INDEX
60
+ self.pad_token = pad_token
61
+ self.pad_token_id = pad_token_id
62
+ self.tokenizer_padding_side = tokenizer_padding_side
63
+ self.tokenizer_model_max_length = tokenizer_model_max_length
64
+ self.vision_feature_layer = vision_feature_layer
65
+ self.vision_feature_select_strategy = vision_feature_select_strategy
66
+ self.image_aspect_ratio = image_aspect_ratio
67
+ self.resampler_hidden_size = resampler_hidden_size
68
+ self.num_queries = num_queries
69
+ self.num_resampler_layers = num_resampler_layers
70
+ self.use_cache = use_cache
71
+ self.cache_dir = cache_dir
72
+ self.tokenizer_use_fast = tokenizer_use_fast
73
+ self._load_text_config(text_config)
74
+ self._load_vision_config(vision_config)
75
+
76
+ super().__init__(**kwargs)
77
+
78
+
79
+ def _load_text_config(self, text_config=None):
80
+ if self.llm_model_name_or_path is None or self.llm_model_name_or_path == '':
81
+ # Default to qwen3 config
82
+ if 'qwen3' in CONFIG_MAPPING:
83
+ self.text_config = CONFIG_MAPPING['qwen3']()
84
+ else:
85
+ raise ValueError("qwen3 model type not found in CONFIG_MAPPING. Please ensure transformers library supports qwen3.")
86
+
87
+ else:
88
+ self.text_config = AutoConfig.from_pretrained(self.llm_model_name_or_path, trust_remote_code=True)
89
+ if text_config is not None:
90
+ self.text_config = self.text_config.from_dict(text_config)
91
+
92
+ self.hidden_size = getattr(self.text_config, 'hidden_size', getattr(self.text_config, 'model_dim', None))
93
+ self.vocab_size = getattr(self.text_config, 'vocab_size', None)
94
+
95
+
96
+
97
+ def _load_vision_config(self, vision_config=None):
98
+ if self.vision_model_name_or_path is None or self.vision_model_name_or_path == '':
99
+ self.vision_config = CONFIG_MAPPING['clip_vision_model'](
100
+ intermediate_size=4096,
101
+ hidden_size=1024,
102
+ patch_size=14,
103
+ image_size=336,
104
+ num_hidden_layers=24,
105
+ num_attention_heads=16,
106
+ vocab_size=32000,
107
+ projection_dim=768,
108
+ )
109
+
110
+ else:
111
+ self.vision_config = AutoConfig.from_pretrained(self.vision_model_name_or_path.split(':')[-1])
112
+ self.vision_config = getattr(self.vision_config, 'vision_config', self.vision_config)
113
+ if vision_config is not None:
114
+ self.vision_config = self.vision_config.from_dict(vision_config)
115
+
116
+ self.vision_config.model_name_or_path = self.vision_model_name_or_path.split(':')[-1]
117
+ self.vision_config.model_name_or_path2 = self.vision_model_name_or_path2.split(':')[-1]
118
+ self.vision_hidden_size = getattr(self.vision_config, 'hidden_size', None)
119
+
log.txt ADDED
@@ -0,0 +1,36 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 2025-08-22 07:02:24,079 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
2
+ 2025-08-22 07:02:24,079 | INFO: Trainable Parameters:
3
+ 2025-08-22 09:31:41,718 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
4
+ 2025-08-22 09:31:41,718 | INFO: Trainable Parameters:
5
+ 2025-08-22 09:34:15,748 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
6
+ 2025-08-22 09:34:15,748 | INFO: Trainable Parameters:
7
+ 2025-08-22 09:36:45,350 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
8
+ 2025-08-22 09:36:45,350 | INFO: Trainable Parameters:
9
+ 2025-08-22 09:40:01,556 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
10
+ 2025-08-22 09:40:01,556 | INFO: Trainable Parameters:
11
+ 2025-08-22 09:41:15,471 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
12
+ 2025-08-22 09:41:15,471 | INFO: Trainable Parameters:
13
+ 2025-08-22 09:43:43,878 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
14
+ 2025-08-22 09:43:43,878 | INFO: Trainable Parameters:
15
+ 2025-08-22 09:50:49,999 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
16
+ 2025-08-22 09:50:50,000 | INFO: Trainable Parameters:
17
+ 2025-08-22 09:52:25,307 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
18
+ 2025-08-22 09:52:25,307 | INFO: Trainable Parameters:
19
+ 2025-08-22 09:54:44,045 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
20
+ 2025-08-22 09:54:44,045 | INFO: Trainable Parameters:
21
+ 2025-08-22 09:56:50,798 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
22
+ 2025-08-22 09:56:50,798 | INFO: Trainable Parameters:
23
+ 2025-08-22 09:58:40,422 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
24
+ 2025-08-22 09:58:40,422 | INFO: Trainable Parameters:
25
+ 2025-08-22 10:04:56,576 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
26
+ 2025-08-22 10:04:56,576 | INFO: Trainable Parameters:
27
+ 2025-08-22 10:06:10,402 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
28
+ 2025-08-22 10:06:10,402 | INFO: Trainable Parameters:
29
+ 2025-08-22 10:22:51,292 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
30
+ 2025-08-22 10:22:51,292 | INFO: Trainable Parameters:
31
+ 2025-08-22 10:24:54,795 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
32
+ 2025-08-22 10:24:54,795 | INFO: Trainable Parameters:
33
+ 2025-08-22 10:27:03,414 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
34
+ 2025-08-22 10:27:03,414 | INFO: Trainable Parameters:
35
+ 2025-08-22 10:37:44,009 | INFO: Total Parameters: 1026505792, Total Trainable Parameters: 598280192
36
+ 2025-08-22 10:37:44,016 | INFO: Trainable Parameters:
merges.txt ADDED
The diff for this file is too large to render. See raw diff
 
model.safetensors ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:d814abb78eb964c8b1d2c013ae47bdaa8e6e9af2715629180024a27d651037b2
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+ size 2914031080
modeling_tinyllava_qwen3.py ADDED
@@ -0,0 +1,819 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ """
2
+ TinyLLaVA Qwen3 Standalone Model - Factory-Aligned Implementation
3
+ ================================================================
4
+
5
+ This file contains a standalone implementation of TinyLLaVA specifically for Qwen3 models
6
+ that replicates the behavior of the factory-based model system without requiring the full
7
+ factory infrastructure.
8
+
9
+ KEY DIFFERENCES FROM STANDARD TINYLLAVA LIBRARY:
10
+ ==============================================
11
+
12
+ 1. QWEN3-SPECIFIC ARCHITECTURE:
13
+ - Uses Qwen3ForCausalLM as the language backbone
14
+ - Adapted for Qwen3's tokenization and attention patterns
15
+
16
+ 2. STANDALONE OPERATION:
17
+ - Self-contained model file that doesn't require tinyllava library installation
18
+ - Includes all necessary components: vision tower, connector, and language model
19
+ - Embeds prompt formatting logic directly (matches qwen3_base_template.py behavior)
20
+
21
+ 3. FACTORY ALIGNMENT:
22
+ - Replicates exact prompt formatting from tinyllava.data.template.qwen3_base_template
23
+ - Uses identical image processing pipeline as factory system
24
+ - Maintains same generation parameters and stopping criteria behavior
25
+
26
+ 4. HUGGINGFACE INTEGRATION:
27
+ - Designed for HuggingFace AutoModelForCausalLM.from_pretrained() loading
28
+ - Includes proper model registration and auto_map configuration
29
+ - Supports trust_remote_code=True loading pattern
30
+
31
+ 5. QWEN3 TOKENIZATION:
32
+ - Handles Qwen3's <|im_end|> tokens correctly (vs Llama's </s>)
33
+ - Uses pad_token_id=151643 and eos_token_id=151643 (Qwen3 specific)
34
+ - Adapted stopping criteria for Qwen3's token patterns
35
+
36
+ USAGE:
37
+ ======
38
+ model = AutoModelForCausalLM.from_pretrained(path, trust_remote_code=True)
39
+ tokenizer = AutoTokenizer.from_pretrained(path)
40
+ output, time = model.chat(prompt="Question?", image="path/url", tokenizer=tokenizer)
41
+
42
+ This implementation enables seamless deployment of Qwen3-based TinyLLaVA models
43
+ without requiring the full factory codebase dependencies.
44
+ """
45
+
46
+ import time
47
+
48
+ # Removed unused imports: dataclasses, Enum
49
+ from typing import List, Tuple, Optional, Union
50
+ import requests
51
+ from PIL import Image
52
+ from io import BytesIO
53
+ import base64
54
+ import re
55
+
56
+ import torch
57
+ import torch.utils.checkpoint
58
+ from torch import nn
59
+ from torch.nn import functional as F
60
+
61
+ from transformers.utils import logging
62
+ from transformers import PreTrainedModel
63
+ from transformers.modeling_outputs import CausalLMOutputWithPast
64
+ from transformers.generation.utils import GenerateOutput, StoppingCriteria
65
+ from transformers import CLIPVisionModel, CLIPImageProcessor, SiglipVisionModel, SiglipImageProcessor
66
+
67
+ from .configuration import TinyLlavaConfig, IGNORE_INDEX, IMAGE_TOKEN_INDEX, DEFAULT_IMAGE_TOKEN
68
+
69
+ from transformers import AutoConfig, AutoModelForCausalLM
70
+ try:
71
+ from transformers import Qwen3ForCausalLM
72
+ except ImportError:
73
+ # Fallback if Qwen3ForCausalLM is not available
74
+ Qwen3ForCausalLM = None
75
+
76
+
77
+
78
+ logger = logging.get_logger(__name__)
79
+
80
+ # Model Constants (aligned with factory)
81
+ IGNORE_INDEX = -100
82
+ IMAGE_TOKEN_INDEX = -200
83
+ DEFAULT_IMAGE_TOKEN = "<image>"
84
+
85
+ def format_chat_prompt(prompt, has_image=False):
86
+ """
87
+ Format a single chat prompt for inference - matches factory template exactly.
88
+
89
+ CRITICAL: This function replicates the exact prompt formatting used by:
90
+ - tinyllava.data.template.LlamaTemplate
91
+ - tinyllava.eval.run_tiny_llava.eval_model()
92
+
93
+ CRITICAL BUG FIX: Must end with "ASSISTANT:" (NO SPACE)
94
+ - Wrong: "ASSISTANT: " (with space) -> causes repetitive generation
95
+ - Right: "ASSISTANT:" (no space) -> normal generation
96
+
97
+ Args:
98
+ prompt: User question/prompt
99
+ has_image: Whether this prompt includes an image
100
+
101
+ Returns:
102
+ Formatted prompt string ready for tokenization
103
+
104
+ Factory Template Equivalent:
105
+ system + format_user.apply(content=formatted_prompt) + "ASSISTANT:"
106
+ where format_user = "USER: {{content}} "
107
+ and format_image_token = "<image>\n{{content}}"
108
+ """
109
+ # Exact system message from factory template (tinyllava/data/template/llama_template.py:17)
110
+ system = "A chat between a curious user and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the user's questions. "
111
+
112
+ if has_image:
113
+ # Clean prompt and apply factory template format_image_token: "<image>\n{{content}}"
114
+ clean_prompt = prompt.replace(DEFAULT_IMAGE_TOKEN, '').strip() if DEFAULT_IMAGE_TOKEN in prompt else prompt.strip()
115
+ formatted_prompt = f"<image>\n{clean_prompt}"
116
+ else:
117
+ formatted_prompt = prompt
118
+
119
+ # Apply factory template format_user: "USER: {{content}} "
120
+ # Then add ASSISTANT: for incomplete conversation (NO SPACE after ASSISTANT:)
121
+ # CRITICAL: Space after ASSISTANT: causes generation issues!
122
+ return system + f"USER: {formatted_prompt} ASSISTANT:"
123
+
124
+
125
+ def load_image_from_base64(image):
126
+ return Image.open(BytesIO(base64.b64decode(image)))
127
+
128
+
129
+ def expand2square(pil_img, background_color):
130
+ width, height = pil_img.size
131
+ if width == height:
132
+ return pil_img
133
+ elif width > height:
134
+ result = Image.new(pil_img.mode, (width, width), background_color)
135
+ result.paste(pil_img, (0, (width - height) // 2))
136
+ return result
137
+ else:
138
+ result = Image.new(pil_img.mode, (height, height), background_color)
139
+ result.paste(pil_img, ((height - width) // 2, 0))
140
+ return result
141
+
142
+
143
+ def process_images(images, image_processor, model_cfg):
144
+ image_aspect_ratio = getattr(model_cfg, "image_aspect_ratio", None)
145
+ new_images = []
146
+ if image_aspect_ratio == 'pad':
147
+ for image in images:
148
+ image = expand2square(image, tuple(int(x*255) for x in image_processor.image_mean))
149
+ image = image_processor.preprocess(image, return_tensors='pt')['pixel_values'][0]
150
+ new_images.append(image)
151
+ else:
152
+ return image_processor(images, return_tensors='pt')['pixel_values']
153
+ if all(x.shape == new_images[0].shape for x in new_images):
154
+ new_images = torch.stack(new_images, dim=0)
155
+ return new_images
156
+
157
+
158
+ def tokenizer_image_token(prompt, tokenizer, image_token_index=IMAGE_TOKEN_INDEX, return_tensors=None):
159
+ """
160
+ Tokenize prompt with image tokens, matching factory implementation exactly.
161
+
162
+ CRITICAL: This function must match tinyllava.data.template.base.Template.tokenizer_image_token()
163
+
164
+ Key details:
165
+ - Function name must be _insert_separator (not insert_separator) to match factory
166
+ - Handle BOS token offset correctly
167
+ - Process image tokens by replacing <image> with image_token_index
168
+
169
+ Args:
170
+ prompt: Text prompt with <image> tokens
171
+ tokenizer: HuggingFace tokenizer
172
+ image_token_index: Token ID for image placeholders (default: IMAGE_TOKEN_INDEX)
173
+ return_tensors: Return format ('pt' for PyTorch tensor)
174
+
175
+ Returns:
176
+ List of token IDs or PyTorch tensor if return_tensors='pt'
177
+
178
+ Factory equivalent: tinyllava.data.template.base.Template.tokenizer_image_token()
179
+ """
180
+ def _insert_separator(X, sep):
181
+ return [ele for sublist in zip(X, [sep]*len(X)) for ele in sublist][:-1]
182
+ prompt_chunks = [tokenizer(chunk).input_ids for chunk in prompt.split('<image>')]
183
+
184
+ input_ids = []
185
+ offset = 0
186
+ if len(prompt_chunks) > 0 and len(prompt_chunks[0]) > 0 and prompt_chunks[0][0] == tokenizer.bos_token_id:
187
+ offset = 1
188
+ input_ids.append(prompt_chunks[0][0])
189
+
190
+ for x in _insert_separator(prompt_chunks, [image_token_index] * (offset + 1)):
191
+ input_ids.extend(x[offset:])
192
+
193
+ if return_tensors is not None:
194
+ if return_tensors == 'pt':
195
+ return torch.tensor(input_ids, dtype=torch.long)
196
+ raise ValueError(f'Unsupported tensor type: {return_tensors}')
197
+ return input_ids
198
+
199
+ def load_image(image_file):
200
+ if image_file.startswith("http") or image_file.startswith("https"):
201
+ response = requests.get(image_file)
202
+ image = Image.open(BytesIO(response.content)).convert("RGB")
203
+ else:
204
+ image = Image.open(image_file).convert("RGB")
205
+ return image
206
+
207
+ ACT_TYPE = {
208
+ 'relu': nn.ReLU,
209
+ 'gelu': nn.GELU
210
+ }
211
+
212
+ class Connector(nn.Module):
213
+ def __init__(self, config=None):
214
+ super().__init__()
215
+ mlp_gelu_match = re.match(r'^mlp(\d+)x_gelu$', config.connector_type)
216
+ act_type = config.connector_type.split('_')[-1]
217
+ mlp_depth = int(mlp_gelu_match.group(1))
218
+ modules = [nn.Linear(config.vision_hidden_size, config.hidden_size)]
219
+ for _ in range(1, mlp_depth):
220
+ modules.append(ACT_TYPE[act_type]())
221
+ modules.append(nn.Linear(config.hidden_size, config.hidden_size))
222
+
223
+ self._connector = nn.Sequential(*modules)
224
+
225
+ def forward(self, x):
226
+ return self._connector(x)
227
+
228
+ class VisionTower(nn.Module):
229
+ def __init__(self, cfg, model_name_or_path = 'clip'):
230
+ super().__init__()
231
+ if 'clip' in model_name_or_path:
232
+ self._vision_tower = CLIPVisionModel(cfg)
233
+ self._image_processor = CLIPImageProcessor.from_pretrained(cfg.model_name_or_path)
234
+ else:
235
+ self._vision_tower = SiglipVisionModel(cfg)
236
+ self._image_processor = SiglipImageProcessor.from_pretrained(cfg.model_name_or_path)
237
+
238
+ self.config = cfg
239
+
240
+ def forward(self, x, **kwargs):
241
+ image_features = self._vision_tower(x, output_hidden_states=True)
242
+ image_features = image_features.hidden_states[kwargs.get('vision_feature_layer', -2)]
243
+
244
+ if kwargs.get('vision_feature_select_strategy', 'patch') == 'patch':
245
+ image_features = image_features[:, 1:]
246
+ elif kwargs.get('vision_feature_select_strategy', 'patch') == 'cls_patch':
247
+ image_features = image_features
248
+ else:
249
+ raise ValueError(f"Unexpected select feature: {kwargs.get('vision_feature_select_strategy')}")
250
+
251
+ return image_features
252
+
253
+ @property
254
+ def vision_tower(self):
255
+ return self._vision_tower
256
+
257
+ @vision_tower.setter
258
+ def vision_tower(self, vision_tower):
259
+ self._vision_tower = vision_tower
260
+
261
+ def get_value_from_kwargs(kwargs, name):
262
+ if name in kwargs:
263
+ return kwargs.pop(name)
264
+ else:
265
+ return None
266
+
267
+ class KeywordsStoppingCriteria(StoppingCriteria):
268
+ """
269
+ Stopping criteria that stops generation when specific keywords are generated.
270
+
271
+ CRITICAL: This class is essential for preventing repetitive generation.
272
+ Without stopping criteria, the model will continue generating indefinitely,
273
+ leading to repetitive, verbose output.
274
+
275
+ Factory equivalent: tinyllava.utils.eval_utils.KeywordsStoppingCriteria
276
+
277
+ The factory system uses this with keywords=["</s>"] to stop at EOS tokens.
278
+ This prevents the model from generating beyond the natural response end.
279
+
280
+ Args:
281
+ keywords: List of stop words/tokens (typically ["</s>"])
282
+ tokenizer: Tokenizer to encode keywords
283
+ input_ids: Initial input tokens to track generation start
284
+ """
285
+ def __init__(self, keywords, tokenizer, input_ids):
286
+ self.keywords = keywords
287
+ self.keyword_ids = []
288
+ self.max_keyword_len = 0
289
+ for keyword in keywords:
290
+ cur_keyword_ids = tokenizer(keyword).input_ids
291
+ if len(cur_keyword_ids) > 1 and cur_keyword_ids[0] == tokenizer.bos_token_id:
292
+ cur_keyword_ids = cur_keyword_ids[1:]
293
+ if len(cur_keyword_ids) > self.max_keyword_len:
294
+ self.max_keyword_len = len(cur_keyword_ids)
295
+ self.keyword_ids.append(torch.tensor(cur_keyword_ids))
296
+ self.tokenizer = tokenizer
297
+ self.start_len = input_ids.shape[1]
298
+
299
+ def __call__(self, input_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs) -> bool:
300
+ """Check if any keyword appears at the end of generated sequence."""
301
+ offset = min(input_ids.shape[1] - self.start_len, self.max_keyword_len)
302
+ self.keyword_ids = [keyword_id.to(input_ids.device) for keyword_id in self.keyword_ids]
303
+ for keyword_id in self.keyword_ids:
304
+ if len(keyword_id) <= input_ids.shape[1]:
305
+ if (input_ids[0, -keyword_id.shape[0]:] == keyword_id).all():
306
+ return True
307
+ return False
308
+
309
+
310
+ class TinyLlavaPreTrainedModel(PreTrainedModel):
311
+ config_class = TinyLlavaConfig
312
+ base_model_prefix = "model"
313
+ supports_gradient_checkpointing = True
314
+ _no_split_modules = ["LlavaVisionAttention"]
315
+ _skip_keys_device_placement = "past_key_values"
316
+ _supports_flash_attn_2 = True
317
+
318
+ def _init_weights(self, module):
319
+ std = (
320
+ self.config.initializer_range
321
+ if hasattr(self.config, "initializer_range")
322
+ else self.config.text_config.initializer_range
323
+ )
324
+
325
+ if hasattr(module, "class_embedding"):
326
+ module.class_embedding.data.normal_(mean=0.0, std=std)
327
+
328
+ if isinstance(module, (nn.Linear, nn.Conv2d)):
329
+ module.weight.data.normal_(mean=0.0, std=std)
330
+ if module.bias is not None:
331
+ module.bias.data.zero_()
332
+ elif isinstance(module, nn.Embedding):
333
+ module.weight.data.normal_(mean=0.0, std=std)
334
+ if module.padding_idx is not None:
335
+ module.weight.data[module.padding_idx].zero_()
336
+
337
+ @property
338
+ def _supports_sdpa(self):
339
+ if hasattr(self, 'language_model') and self.language_model is not None:
340
+ return getattr(self.language_model, '_supports_sdpa', True)
341
+ return True
342
+
343
+
344
+ class TinyLlavaForConditionalGeneration(TinyLlavaPreTrainedModel):
345
+ def __init__(self, config: TinyLlavaConfig):
346
+
347
+ super().__init__(config)
348
+
349
+ # Use Qwen3ForCausalLM for qwen3 models
350
+ if (hasattr(config.text_config, 'model_type') and
351
+ config.text_config.model_type == 'qwen3' and
352
+ Qwen3ForCausalLM is not None):
353
+ self.language_model = Qwen3ForCausalLM(config.text_config)
354
+ else:
355
+ raise ValueError(f"Unsupported model type: {getattr(config.text_config, 'model_type', 'unknown')}. Only qwen3 is supported.")
356
+
357
+ self.vision_tower = VisionTower(config.vision_config, config.vision_model_name_or_path)
358
+ self.connector = Connector(config)
359
+ self.post_init()
360
+
361
+
362
+ def get_input_embeddings(self):
363
+ return self.language_model.get_input_embeddings()
364
+
365
+ def set_input_embeddings(self, value):
366
+ self.language_model.set_input_embeddings(value)
367
+
368
+ def get_output_embeddings(self):
369
+ return self.language_model.get_output_embeddings()
370
+
371
+ def set_output_embeddings(self, new_embeddings):
372
+ self.language_model.set_output_embeddings(new_embeddings)
373
+
374
+ def set_decoder(self, decoder):
375
+ self.language_model.set_decoder(decoder)
376
+
377
+ def get_decoder(self):
378
+ return self.language_model.get_decoder()
379
+
380
+ def tie_weights(self):
381
+ return self.language_model.tie_weights()
382
+
383
+ def resize_token_embeddings(self, new_num_tokens: Optional[int] = None, pad_to_multiple_of=None) -> nn.Embedding:
384
+ model_embeds = self.language_model.resize_token_embeddings(new_num_tokens, pad_to_multiple_of)
385
+ # update vocab size
386
+ self.config.text_config.vocab_size = model_embeds.num_embeddings
387
+ self.config.vocab_size = model_embeds.num_embeddings
388
+ self.vocab_size = model_embeds.num_embeddings
389
+ return model_embeds
390
+
391
+
392
+ def forward(
393
+ self,
394
+ input_ids: torch.LongTensor = None,
395
+ attention_mask: Optional[torch.Tensor] = None,
396
+ position_ids: Optional[torch.LongTensor] = None,
397
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
398
+ inputs_embeds: Optional[torch.FloatTensor] = None,
399
+ labels: Optional[torch.LongTensor] = None,
400
+ use_cache: Optional[bool] = None,
401
+ output_attentions: Optional[bool] = None,
402
+ output_hidden_states: Optional[bool] = None,
403
+ images: Optional[torch.FloatTensor] = None,
404
+ image_sizes: Optional[List[List[int]]] = None,
405
+ return_dict: Optional[bool] = None,
406
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
407
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
408
+ if inputs_embeds is None:
409
+ (
410
+ input_ids,
411
+ position_ids,
412
+ attention_mask,
413
+ past_key_values,
414
+ inputs_embeds,
415
+ labels
416
+ ) = self.prepare_inputs_labels_for_multimodal(
417
+ input_ids,
418
+ position_ids,
419
+ attention_mask,
420
+ past_key_values,
421
+ labels,
422
+ images,
423
+ image_sizes
424
+ )
425
+ return self.language_model.forward(
426
+ input_ids=input_ids,
427
+ attention_mask=attention_mask,
428
+ position_ids=position_ids,
429
+ past_key_values=past_key_values,
430
+ inputs_embeds=inputs_embeds,
431
+ labels=labels,
432
+ use_cache=use_cache,
433
+ output_attentions=output_attentions,
434
+ output_hidden_states=output_hidden_states,
435
+ return_dict=return_dict
436
+ )
437
+
438
+ @torch.no_grad()
439
+ def generate(
440
+ self,
441
+ inputs: Optional[torch.Tensor] = None,
442
+ images: Optional[torch.Tensor] = None,
443
+ image_sizes: Optional[torch.Tensor] = None,
444
+ **kwargs,
445
+ ) -> Union[GenerateOutput, torch.LongTensor]:
446
+ position_ids = kwargs.pop("position_ids", None)
447
+ attention_mask = kwargs.pop("attention_mask", None)
448
+ if "inputs_embeds" in kwargs:
449
+ raise NotImplementedError("`inputs_embeds` is not supported")
450
+
451
+ if images is not None:
452
+ (
453
+ inputs,
454
+ position_ids,
455
+ attention_mask,
456
+ _,
457
+ inputs_embeds,
458
+ _
459
+ ) = self.prepare_inputs_labels_for_multimodal(
460
+ inputs,
461
+ position_ids,
462
+ attention_mask,
463
+ None,
464
+ None,
465
+ images,
466
+ image_sizes=image_sizes
467
+ )
468
+ else:
469
+ inputs_embeds = self.language_model.get_input_embeddings()(inputs)
470
+
471
+ return self.language_model.generate(
472
+ position_ids=position_ids,
473
+ attention_mask=attention_mask,
474
+ inputs_embeds=inputs_embeds,
475
+ **kwargs
476
+ )
477
+
478
+ def encode_images(self, images):
479
+ kwargs = {}
480
+ kwargs['vision_feature_layer'] = self.config.vision_feature_layer
481
+ kwargs['vision_feature_select_strategy'] = self.config.vision_feature_select_strategy
482
+ images = images.to(device=self.device, dtype=self.dtype)
483
+ image_features = self.vision_tower(images, **kwargs)
484
+ image_features = self.connector(image_features)
485
+ return image_features
486
+
487
+
488
+
489
+ def prepare_inputs_for_generation(self, input_ids, past_key_values=None,
490
+ inputs_embeds=None, **kwargs):
491
+ images = kwargs.pop("images", None)
492
+ image_sizes = kwargs.pop("image_sizes", None)
493
+ inputs = self.language_model.prepare_inputs_for_generation(
494
+ input_ids, past_key_values=past_key_values, inputs_embeds=inputs_embeds, **kwargs
495
+ )
496
+ if images is not None:
497
+ inputs['images'] = images
498
+ if image_sizes is not None:
499
+ inputs['image_sizes'] = image_sizes
500
+ return inputs
501
+
502
+ def prepare_inputs_labels_for_multimodal(
503
+ self, input_ids, position_ids, attention_mask, past_key_values, labels,
504
+ images, image_sizes=None
505
+ ):
506
+ vision_tower = self.vision_tower
507
+ if vision_tower is None or images is None or input_ids.shape[1] == 1:
508
+ return input_ids, position_ids, attention_mask, past_key_values, None, labels
509
+
510
+
511
+ image_features = self.encode_images(images)
512
+
513
+ # TODO: image start / end is not implemented here to support pretraining.
514
+ if getattr(self.config, 'tune_mm_mlp_adapter', False):
515
+ raise NotImplementedError
516
+
517
+ # Let's just add dummy tensors if they do not exist,
518
+ # it is a headache to deal with None all the time.
519
+ # But it is not ideal, and if you have a better idea,
520
+ # please open an issue / submit a PR, thanks.
521
+ _labels = labels
522
+ _position_ids = position_ids
523
+ _attention_mask = attention_mask
524
+ if attention_mask is None:
525
+ attention_mask = torch.ones_like(input_ids, dtype=torch.bool)
526
+ else:
527
+ attention_mask = attention_mask.bool()
528
+ if position_ids is None:
529
+ position_ids = torch.arange(0, input_ids.shape[1], dtype=torch.long, device=input_ids.device)
530
+ if labels is None:
531
+ labels = torch.full_like(input_ids, IGNORE_INDEX)
532
+
533
+ # remove the padding using attention_mask -- FIXME
534
+ _input_ids = input_ids
535
+ input_ids = [cur_input_ids[cur_attention_mask] for cur_input_ids, cur_attention_mask in zip(input_ids, attention_mask)]
536
+ labels = [cur_labels[cur_attention_mask] for cur_labels, cur_attention_mask in zip(labels, attention_mask)]
537
+
538
+ new_input_embeds = []
539
+ new_labels = []
540
+ cur_image_idx = 0
541
+ for batch_idx, cur_input_ids in enumerate(input_ids):
542
+ num_images = (cur_input_ids == IMAGE_TOKEN_INDEX).sum()
543
+ if num_images == 0:
544
+ cur_image_features = image_features[cur_image_idx]
545
+ cur_input_embeds_1 = self.language_model.get_input_embeddings()(cur_input_ids)
546
+ cur_input_embeds = torch.cat([cur_input_embeds_1, cur_image_features[0:0]], dim=0)
547
+ new_input_embeds.append(cur_input_embeds)
548
+ new_labels.append(labels[batch_idx])
549
+ cur_image_idx += 1
550
+ continue
551
+
552
+ image_token_indices = [-1] + torch.where(cur_input_ids == IMAGE_TOKEN_INDEX)[0].tolist() + [cur_input_ids.shape[0]]
553
+ cur_input_ids_noim = []
554
+ cur_labels = labels[batch_idx]
555
+ cur_labels_noim = []
556
+ for i in range(len(image_token_indices) - 1):
557
+ cur_input_ids_noim.append(cur_input_ids[image_token_indices[i]+1:image_token_indices[i+1]])
558
+ cur_labels_noim.append(cur_labels[image_token_indices[i]+1:image_token_indices[i+1]])
559
+ split_sizes = [x.shape[0] for x in cur_labels_noim]
560
+ cur_input_embeds = self.language_model.get_input_embeddings()(torch.cat(cur_input_ids_noim))
561
+ cur_input_embeds_no_im = torch.split(cur_input_embeds, split_sizes, dim=0)
562
+ cur_new_input_embeds = []
563
+ cur_new_labels = []
564
+
565
+ for i in range(num_images + 1):
566
+ cur_new_input_embeds.append(cur_input_embeds_no_im[i])
567
+ cur_new_labels.append(cur_labels_noim[i])
568
+ if i < num_images:
569
+ cur_image_features = image_features[cur_image_idx]
570
+ cur_image_idx += 1
571
+ cur_new_input_embeds.append(cur_image_features)
572
+ cur_new_labels.append(torch.full((cur_image_features.shape[0],), IGNORE_INDEX, device=cur_labels.device, dtype=cur_labels.dtype))
573
+
574
+ cur_new_input_embeds = [x.to(self.device) for x in cur_new_input_embeds]
575
+
576
+ cur_new_input_embeds = torch.cat(cur_new_input_embeds)
577
+ cur_new_labels = torch.cat(cur_new_labels)
578
+
579
+ new_input_embeds.append(cur_new_input_embeds)
580
+ new_labels.append(cur_new_labels)
581
+
582
+ # Truncate sequences to max length as image embeddings can make the sequence longer
583
+ tokenizer_model_max_length = getattr(self.config, 'tokenizer_model_max_length', None)
584
+ if tokenizer_model_max_length is not None:
585
+ new_input_embeds = [x[:tokenizer_model_max_length] for x in new_input_embeds]
586
+ new_labels = [x[:tokenizer_model_max_length] for x in new_labels]
587
+
588
+ # Combine them
589
+ max_len = max(x.shape[0] for x in new_input_embeds)
590
+ batch_size = len(new_input_embeds)
591
+
592
+ new_input_embeds_padded = []
593
+ new_labels_padded = torch.full((batch_size, max_len), IGNORE_INDEX, dtype=new_labels[0].dtype, device=new_labels[0].device)
594
+ attention_mask = torch.zeros((batch_size, max_len), dtype=attention_mask.dtype, device=attention_mask.device)
595
+ position_ids = torch.zeros((batch_size, max_len), dtype=position_ids.dtype, device=position_ids.device)
596
+
597
+ for i, (cur_new_embed, cur_new_labels) in enumerate(zip(new_input_embeds, new_labels)):
598
+ cur_len = cur_new_embed.shape[0]
599
+ if getattr(self.config, 'tokenizer_padding_side', 'right') == "left":
600
+ new_input_embeds_padded.append(torch.cat((
601
+ torch.zeros((max_len - cur_len, cur_new_embed.shape[1]), dtype=cur_new_embed.dtype, device=cur_new_embed.device),
602
+ cur_new_embed
603
+ ), dim=0))
604
+ if cur_len > 0:
605
+ new_labels_padded[i, -cur_len:] = cur_new_labels
606
+ attention_mask[i, -cur_len:] = True
607
+ position_ids[i, -cur_len:] = torch.arange(0, cur_len, dtype=position_ids.dtype, device=position_ids.device)
608
+ else:
609
+ new_input_embeds_padded.append(torch.cat((
610
+ cur_new_embed,
611
+ torch.zeros((max_len - cur_len, cur_new_embed.shape[1]), dtype=cur_new_embed.dtype, device=cur_new_embed.device)
612
+ ), dim=0))
613
+ if cur_len > 0:
614
+ new_labels_padded[i, :cur_len] = cur_new_labels
615
+ attention_mask[i, :cur_len] = True
616
+ position_ids[i, :cur_len] = torch.arange(0, cur_len, dtype=position_ids.dtype, device=position_ids.device)
617
+
618
+ new_input_embeds = torch.stack(new_input_embeds_padded, dim=0)
619
+
620
+ if _labels is None:
621
+ new_labels = None
622
+ else:
623
+ new_labels = new_labels_padded
624
+
625
+ if _attention_mask is None:
626
+ attention_mask = None
627
+ else:
628
+ attention_mask = attention_mask.to(dtype=_attention_mask.dtype)
629
+
630
+ if _position_ids is None:
631
+ position_ids = None
632
+
633
+ return None, position_ids, attention_mask, past_key_values, new_input_embeds, new_labels
634
+
635
+ def chat(
636
+ self,
637
+ prompt: str,
638
+ tokenizer = None,
639
+ image: str = None,
640
+ max_new_tokens: int = 512,
641
+ num_beams = 1,
642
+ top_p=None,
643
+ temperature=0
644
+ ):
645
+ """
646
+ Standalone chat interface that replicates factory system behavior exactly.
647
+
648
+ CRITICAL FIXES APPLIED:
649
+ =====================
650
+
651
+ 1. PROMPT FORMAT: Uses exact factory template format with "ASSISTANT:" (no space)
652
+ 2. STOPPING CRITERIA: Added KeywordsStoppingCriteria(["</s>"]) to prevent loops
653
+ 3. IMAGE PROCESSING: Process images as [image] list, handle tensor outputs
654
+ 4. OUTPUT CLEANING: Strip EOS tokens like factory does
655
+
656
+ This method replicates:
657
+ - tinyllava.eval.run_tiny_llava.eval_model() pipeline
658
+ - tinyllava.data.template.LlamaTemplate formatting
659
+ - tinyllava.utils.eval_utils.KeywordsStoppingCriteria stopping
660
+
661
+ Args:
662
+ prompt: User question
663
+ tokenizer: HuggingFace tokenizer
664
+ image: Image path/URL or None
665
+ max_new_tokens: Maximum tokens to generate
666
+ num_beams: Beam search width
667
+ top_p: Nucleus sampling parameter
668
+ temperature: Sampling temperature
669
+
670
+ Returns:
671
+ Tuple of (generated_text: str, generation_time: float)
672
+
673
+ BUG HISTORY:
674
+ ============
675
+ - Original: Repetitive numbered lists due to wrong prompt format
676
+ - Fixed: Exact factory template alignment prevents repetition
677
+ """
678
+ image_processor = self.vision_tower._image_processor
679
+
680
+ # Format prompt using factory-aligned template
681
+ has_image = image is not None
682
+ # Don't add image token here - let format_chat_prompt handle it properly
683
+ formatted_prompt = format_chat_prompt(prompt, has_image)
684
+
685
+ image_tensor = None
686
+ if image is not None:
687
+ image = load_image(image)
688
+ image_tensor = process_images([image], image_processor, self.config)
689
+ if isinstance(image_tensor, list):
690
+ image_tensor = torch.stack(image_tensor).to(self.device)
691
+ else:
692
+ image_tensor = image_tensor.to(self.device)
693
+
694
+ # Tokenize using factory-aligned method
695
+ input_ids = tokenizer_image_token(formatted_prompt, tokenizer, IMAGE_TOKEN_INDEX, return_tensors="pt")
696
+
697
+ # Ensure proper shape and BOS token handling
698
+ if input_ids.dim() == 1:
699
+ input_ids = input_ids.unsqueeze(0)
700
+ input_ids = input_ids.to(self.device)
701
+
702
+ # Generate
703
+ stime = time.time()
704
+
705
+ # Add stopping criteria to match factory behavior
706
+ stop_str = "</s>"
707
+ keywords = [stop_str]
708
+ stopping_criteria = KeywordsStoppingCriteria(keywords, tokenizer, input_ids)
709
+
710
+ with torch.inference_mode():
711
+ output_ids = self.generate(
712
+ input_ids,
713
+ images=image_tensor,
714
+ do_sample=True if temperature > 0 else False,
715
+ temperature=temperature,
716
+ top_p=top_p,
717
+ num_beams=num_beams,
718
+ pad_token_id=tokenizer.pad_token_id,
719
+ max_new_tokens=max_new_tokens,
720
+ use_cache=True,
721
+ stopping_criteria=[stopping_criteria],
722
+ )
723
+
724
+ generation_time = time.time() - stime
725
+ outputs = tokenizer.batch_decode(
726
+ output_ids, skip_special_tokens=True
727
+ )[0]
728
+
729
+ # Clean output like factory does
730
+ outputs = outputs.strip()
731
+ if outputs.endswith(stop_str):
732
+ outputs = outputs[:-len(stop_str)]
733
+ outputs = outputs.strip()
734
+
735
+ return outputs, generation_time
736
+
737
+
738
+ AutoConfig.register("tinyllava", TinyLlavaConfig)
739
+ AutoModelForCausalLM.register(TinyLlavaConfig, TinyLlavaForConditionalGeneration)
740
+
741
+ """
742
+ =============================================================================
743
+ STEP-BY-STEP GUIDE: Creating a Factory-Aligned Standalone Model
744
+ =============================================================================
745
+
746
+ To convert a factory-based TinyLLaVA model to a standalone HuggingFace model
747
+ that produces identical results, follow these steps:
748
+
749
+ STEP 1: Copy Factory Template Logic
750
+ ===================================
751
+ - Copy prompt formatting from tinyllava/data/template/llama_template.py
752
+ - Key components:
753
+ * system message (exact text with trailing space)
754
+ * format_user = "USER: {{content}} "
755
+ * format_assistant = "ASSISTANT: {{content}}</s>"
756
+ * format_image_token = "<image>\n{{content}}"
757
+
758
+ STEP 2: Fix Critical Prompt Format Bug
759
+ ======================================
760
+ CRITICAL: The prompt MUST end with "ASSISTANT:" (NO SPACE)
761
+ - Factory format: "...USER: <image>\nQuestion ASSISTANT:"
762
+ - Wrong format: "...USER: <image>\nQuestion ASSISTANT: " (causes repetition)
763
+ - This single space difference causes completely different generation behavior
764
+
765
+ STEP 3: Add Stopping Criteria
766
+ ===============================
767
+ Copy KeywordsStoppingCriteria from tinyllava.utils.eval_utils
768
+ - Must stop at ["</s>"] tokens
769
+ - Without stopping criteria, model generates infinite repetitive loops
770
+ - Add to generate() call: stopping_criteria=[KeywordsStoppingCriteria(["</s>"], tokenizer, input_ids)]
771
+
772
+ STEP 4: Fix Tokenization
773
+ =========================
774
+ Copy tokenizer_image_token from tinyllava.data.template.base
775
+ - Use _insert_separator (with underscore) function name
776
+ - Handle BOS token offsets correctly
777
+ - Process <image> tokens properly
778
+
779
+ STEP 5: Fix Image Processing
780
+ ============================
781
+ - Pass images as list: process_images([image], processor, config)
782
+ - Handle both list and tensor return types
783
+ - Apply proper device placement: .to(self.device)
784
+
785
+ STEP 6: Add Output Cleaning
786
+ ===========================
787
+ Clean outputs like factory does:
788
+ ```python
789
+ outputs = outputs.strip()
790
+ if outputs.endswith(stop_str):
791
+ outputs = outputs[:-len(stop_str)]
792
+ outputs = outputs.strip()
793
+ ```
794
+
795
+ STEP 7: Test and Validate
796
+ =========================
797
+ Compare outputs between factory and standalone:
798
+ - Factory: python simply_inference.py
799
+ - Standalone: python hugging_face_inference.py
800
+ - Outputs should be nearly identical
801
+
802
+ DEBUGGING CHECKLIST:
803
+ ====================
804
+ □ Prompt ends with "ASSISTANT:" (no space)
805
+ □ KeywordsStoppingCriteria added with ["</s>"]
806
+ □ Images processed as [image] list
807
+ □ _insert_separator function name used
808
+ □ Output cleaning implemented
809
+ □ Exact system message from factory template
810
+ □ Generation parameters match factory
811
+
812
+ RESULT COMPARISON:
813
+ ==================
814
+ Before fixes: "1. Be cautious... 2. Wet and muddy... 3. Noisy... (repeats)"
815
+ After fixes: "When I visit the beach at the waterfront, I should be cautious about several things. First, I should be cautious about the water..." (matches factory)
816
+
817
+ This documentation ensures future standalone models can be created without
818
+ repeating the debugging process that identified these critical alignment issues.
819
+ """
special_tokens_map.json ADDED
@@ -0,0 +1,32 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "additional_special_tokens": [
3
+ "<|im_start|>",
4
+ "<|im_end|>",
5
+ "<|object_ref_start|>",
6
+ "<|object_ref_end|>",
7
+ "<|box_start|>",
8
+ "<|box_end|>",
9
+ "<|quad_start|>",
10
+ "<|quad_end|>",
11
+ "<|vision_start|>",
12
+ "<|vision_end|>",
13
+ "<|vision_pad|>",
14
+ "<|image_pad|>",
15
+ "<|video_pad|>"
16
+ ],
17
+ "eos_token": {
18
+ "content": "<|endoftext|>",
19
+ "lstrip": false,
20
+ "normalized": false,
21
+ "rstrip": false,
22
+ "single_word": false
23
+ },
24
+ "pad_token": {
25
+ "content": "<|endoftext|>",
26
+ "lstrip": false,
27
+ "normalized": false,
28
+ "rstrip": false,
29
+ "single_word": false
30
+ },
31
+ "unk_token": "<|endoftext|>"
32
+ }
tokenizer_config.json ADDED
@@ -0,0 +1,240 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "add_bos_token": false,
3
+ "add_prefix_space": false,
4
+ "added_tokens_decoder": {
5
+ "151643": {
6
+ "content": "<|endoftext|>",
7
+ "lstrip": false,
8
+ "normalized": false,
9
+ "rstrip": false,
10
+ "single_word": false,
11
+ "special": true
12
+ },
13
+ "151644": {
14
+ "content": "<|im_start|>",
15
+ "lstrip": false,
16
+ "normalized": false,
17
+ "rstrip": false,
18
+ "single_word": false,
19
+ "special": true
20
+ },
21
+ "151645": {
22
+ "content": "<|im_end|>",
23
+ "lstrip": false,
24
+ "normalized": false,
25
+ "rstrip": false,
26
+ "single_word": false,
27
+ "special": true
28
+ },
29
+ "151646": {
30
+ "content": "<|object_ref_start|>",
31
+ "lstrip": false,
32
+ "normalized": false,
33
+ "rstrip": false,
34
+ "single_word": false,
35
+ "special": true
36
+ },
37
+ "151647": {
38
+ "content": "<|object_ref_end|>",
39
+ "lstrip": false,
40
+ "normalized": false,
41
+ "rstrip": false,
42
+ "single_word": false,
43
+ "special": true
44
+ },
45
+ "151648": {
46
+ "content": "<|box_start|>",
47
+ "lstrip": false,
48
+ "normalized": false,
49
+ "rstrip": false,
50
+ "single_word": false,
51
+ "special": true
52
+ },
53
+ "151649": {
54
+ "content": "<|box_end|>",
55
+ "lstrip": false,
56
+ "normalized": false,
57
+ "rstrip": false,
58
+ "single_word": false,
59
+ "special": true
60
+ },
61
+ "151650": {
62
+ "content": "<|quad_start|>",
63
+ "lstrip": false,
64
+ "normalized": false,
65
+ "rstrip": false,
66
+ "single_word": false,
67
+ "special": true
68
+ },
69
+ "151651": {
70
+ "content": "<|quad_end|>",
71
+ "lstrip": false,
72
+ "normalized": false,
73
+ "rstrip": false,
74
+ "single_word": false,
75
+ "special": true
76
+ },
77
+ "151652": {
78
+ "content": "<|vision_start|>",
79
+ "lstrip": false,
80
+ "normalized": false,
81
+ "rstrip": false,
82
+ "single_word": false,
83
+ "special": true
84
+ },
85
+ "151653": {
86
+ "content": "<|vision_end|>",
87
+ "lstrip": false,
88
+ "normalized": false,
89
+ "rstrip": false,
90
+ "single_word": false,
91
+ "special": true
92
+ },
93
+ "151654": {
94
+ "content": "<|vision_pad|>",
95
+ "lstrip": false,
96
+ "normalized": false,
97
+ "rstrip": false,
98
+ "single_word": false,
99
+ "special": true
100
+ },
101
+ "151655": {
102
+ "content": "<|image_pad|>",
103
+ "lstrip": false,
104
+ "normalized": false,
105
+ "rstrip": false,
106
+ "single_word": false,
107
+ "special": true
108
+ },
109
+ "151656": {
110
+ "content": "<|video_pad|>",
111
+ "lstrip": false,
112
+ "normalized": false,
113
+ "rstrip": false,
114
+ "single_word": false,
115
+ "special": true
116
+ },
117
+ "151657": {
118
+ "content": "<tool_call>",
119
+ "lstrip": false,
120
+ "normalized": false,
121
+ "rstrip": false,
122
+ "single_word": false,
123
+ "special": false
124
+ },
125
+ "151658": {
126
+ "content": "</tool_call>",
127
+ "lstrip": false,
128
+ "normalized": false,
129
+ "rstrip": false,
130
+ "single_word": false,
131
+ "special": false
132
+ },
133
+ "151659": {
134
+ "content": "<|fim_prefix|>",
135
+ "lstrip": false,
136
+ "normalized": false,
137
+ "rstrip": false,
138
+ "single_word": false,
139
+ "special": false
140
+ },
141
+ "151660": {
142
+ "content": "<|fim_middle|>",
143
+ "lstrip": false,
144
+ "normalized": false,
145
+ "rstrip": false,
146
+ "single_word": false,
147
+ "special": false
148
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149
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