A Catalog of Meta's LLaMA Models

In the spirit of building LLMs, Meta AI first introduced LLaMA-1 which was released under a non-commercial license. In subsequent work, Meta AI introduced open-sourced Llama 2 and Llama 2-Chat. Crucially, both models are open sourced with license that authorizes commercial use, marking a significant stride towards fostering transparency and promoting the development of more responsible, replicable LLMs. Evaluation comparisons of open-source models, including Llama 1, Llama 2 base models, MPT (MosaicML), and Falcon on standard academic benchmarks indicate that Llama 2 outperforms other models including Llama 1. This comparison showcases Llama 1 versus 2 on their essential characteristics.