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--- |
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library_name: transformers |
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tags: |
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- 4bit |
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- bnb |
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- bitsandbytes |
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- llama |
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- llama-2 |
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- facebook |
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- meta |
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- 7b |
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- quantized |
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license: llama2 |
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pipeline_tag: text-generation |
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--- |
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# Model Card for alokabhishek/Llama-2-7b-chat-hf-bnb-4bit |
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<!-- Provide a quick summary of what the model is/does. --> |
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This repo contains 4-bit quantized (using bitsandbytes) model of Meta's meta-llama/Llama-2-7b-chat-hf |
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## Model Details |
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- Model creator: [Meta](https://huggingface.co/meta-llama) |
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- Original model: [Llama-2-7b-chat-hf](https://huggingface.co/meta-llama/Llama-2-7b-chat-hf) |
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### About 4 bit quantization using bitsandbytes |
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QLoRA: Efficient Finetuning of Quantized LLMs: [arXiv - QLoRA: Efficient Finetuning of Quantized LLMs](https://arxiv.org/abs/2305.14314) |
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Hugging Face Blog post on 4-bit quantization using bitsandbytes: [Making LLMs even more accessible with bitsandbytes, 4-bit quantization and QLoRA](https://huggingface.co/blog/4bit-transformers-bitsandbytes) |
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bitsandbytes github repo: [bitsandbytes github repo](https://github.com/TimDettmers/bitsandbytes) |
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# How to Get Started with the Model |
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Use the code below to get started with the model. |
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## How to run from Python code |
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#### First install the package |
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```shell |
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pip install -q -U bitsandbytes accelerate torch huggingface_hub |
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pip install -q -U git+https://github.com/huggingface/transformers.git # Install latest version of transformers |
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pip install -q -U git+https://github.com/huggingface/peft.git |
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pip install flash-attn --no-build-isolation |
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``` |
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#### Import |
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```python |
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import torch |
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import os |
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from torch import bfloat16 |
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from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline, BitsAndBytesConfig, LlamaForCausalLM |
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``` |
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#### Use a pipeline as a high-level helper |
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```python |
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model_id_llama = "alokabhishek/Llama-2-7b-chat-hf-bnb-4bit" |
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tokenizer_llama = AutoTokenizer.from_pretrained(model_id_llama, use_fast=True) |
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model_llama = AutoModelForCausalLM.from_pretrained( |
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model_id_llama, |
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device_map="auto" |
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) |
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pipe_llama = pipeline(model=model_llama, tokenizer=tokenizer_llama, task='text-generation') |
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prompt_llama = "Tell me a funny joke about Large Language Models meeting a Blackhole in an intergalactic Bar." |
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output_llama = pipe_llama(prompt_llama, max_new_tokens=512) |
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print(output_llama[0]["generated_text"]) |
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``` |
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## Uses |
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<!-- Address questions around how the model is intended to be used, including the foreseeable users of the model and those affected by the model. --> |
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### Direct Use |
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<!-- This section is for the model use without fine-tuning or plugging into a larger ecosystem/app. --> |
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[More Information Needed] |
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### Downstream Use [optional] |
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<!-- This section is for the model use when fine-tuned for a task, or when plugged into a larger ecosystem/app --> |
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[More Information Needed] |
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### Out-of-Scope Use |
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<!-- This section addresses misuse, malicious use, and uses that the model will not work well for. --> |
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[More Information Needed] |
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## Bias, Risks, and Limitations |
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<!-- This section is meant to convey both technical and sociotechnical limitations. --> |
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[More Information Needed] |
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## Model Card Authors [optional] |
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[More Information Needed] |
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## Model Card Contact |
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[More Information Needed] |
