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LLM Index

FastChat vs. Guanaco

A side-by-side comparison of release history, capabilities, licensing and model sizes.

Attribute FastChat Guanaco
Developer LMSYS UW NLP
Current generation – –
Initial release 2023-04-28 2023-05-23
Instruct tuned Yes Yes
Coding No No
Finetuning Yes Yes
Open source Yes Yes
License Apache 2.0 Noncommercial
Model sizes 3B 7B, 13B, 33B, 65B
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FastChat

FastChat is the open platform for training, serving, and evaluating LLM chatbots developed and maintained by LMSYS.

FastChat is an open-source library for training, serving, and evaluating LLM chat systems from LMSYS. It includes training and evaluation code, a model serving system, a Web GUI, and a finetuning pipeline, and is the de facto system for Vicuna as well as FastChat-T5. FastChat also includes the Chatbot Arena for benchmarking LLMs.

Further reading

Guanaco

Guanaco is an LLM based off the QLoRA 4-bit finetuning method developed by Tim Dettmers et. al. in the UW NLP group. Guanaco achieves 99% ChatGPT performance on the Vicuna benchmark.

Guanaco is an LLM that uses a finetuning method called LoRA that was developed by Tim Dettmers et. al. in the UW NLP group. With QLoRA, it becomes possible to finetune up to a 65B parameter model on a 48GB GPU without loss of performance relative to a 16-bit model. The Guanaco model family outperforms all previously released models on the Vicuna benchmark. However, given the models are based off of the LLaMA model family, commercial use is not permitted.

Further reading

Compare other models

Other FastChat comparisons

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