Llama 2
What’s New in Llama 2
Here are some of the key differences between Llama 2 and Llama:
Training data: Llama 2 is trained on 40% more tokens than Llama, a total of 2 trillion tokens. This gives it a larger knowledge base and allows it to generate more accurate responses.Model size: Llama 2 is available in three sizes: 7 billion parameters, 13 billion parameters, and 70 billion parameters. Whereas, the maximum size of Llama is 65 billion parameters.Chat optimization: Llama 2-Chat is a specialized version of Llama 2 that is optimized for engaging in two-way conversations. It has been trained on a dataset of human conversations, which allows it to generate more natural and engaging responses.Safety and bias mitigation: Llama 2 has been trained with a focus on safety and bias mitigation. This means that it is less likely to generate toxic or harmful content.Open source: Llama 2 is open source, which means that anyone can use it for research or commercial purposes. Whereas, Llama can’t be used for commercial purposes.
Python Code : Llama 2
Llam2: 7 Billion Parameters
To run Llama2 7B model, refer the code below. The following code uses a 4-bit quantization technique that reduces the size of the LLM, which can make it easier to deploy and use on sytems with limited memory.
%cd /content !apt-get -y install -qq aria2 !git clone -b v1.3 https://github.com/camenduru/text-generation-webui %cd /content/text-generation-webui !pip install -r requirements.txt !pip install -U gradio==3.28.3 !mkdir /content/text-generation-webui/repositories %cd /content/text-generation-webui/repositories !git clone -b v1.2 https://github.com/camenduru/GPTQ-for-LLaMa.git %cd GPTQ-for-LLaMa !python setup_cuda.py install !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/raw/main/config.json -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o config.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/raw/main/generation_config.json -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o generation_config.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/raw/main/special_tokens_map.json -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o special_tokens_map.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/resolve/main/tokenizer.model -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o tokenizer.model !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/raw/main/tokenizer_config.json -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o tokenizer_config.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-7b-Chat-GPTQ/resolve/main/gptq_model-4bit-128g.safetensors -d /content/text-generation-webui/models/Llama-2-7b-Chat-GPTQ -o gptq_model-4bit-128g.safetensors %cd /content/text-generation-webui !python server.py --share --chat --wbits 4 --groupsize 128 --model_type llama
Llam2: 13 Billion Parameters
To run Llama2 13B model, refer the code below.
%cd /content !apt-get -y install -qq aria2 !git clone -b v1.8 https://github.com/camenduru/text-generation-webui %cd /content/text-generation-webui !pip install -r requirements.txt !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/resolve/main/model-00001-of-00003.safetensors -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o model-00001-of-00003.safetensors !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/resolve/main/model-00002-of-00003.safetensors -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o model-00002-of-00003.safetensors !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/resolve/main/model-00003-of-00003.safetensors -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o model-00003-of-00003.safetensors !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/raw/main/model.safetensors.index.json -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o model.safetensors.index.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/raw/main/special_tokens_map.json -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o special_tokens_map.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/resolve/main/tokenizer.model -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o tokenizer.model !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/raw/main/tokenizer_config.json -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o tokenizer_config.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/raw/main/config.json -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o config.json !aria2c --console-log-level=error -c -x 16 -s 16 -k 1M https://huggingface.co/4bit/Llama-2-13b-chat-hf/raw/main/generation_config.json -d /content/text-generation-webui/models/Llama-2-13b-chat-hf -o generation_config.json %cd /content/text-generation-webui !python server.py --share --chat --load-in-8bit --model /content/text-generation-webui/models/Llama-2-13b-chat-hf
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