Meta and Microsoft release Llama 2 for research and most commercial use

Summary

Llama 2 shipped with pretrained and chat-tuned weights, code and distribution through Azure, AWS and Hugging Face. Its custom community licence enabled broad commercial use while retaining restrictions, so it is more precisely described as an open-weight model than unrestricted open-source software. Capability, benchmark and availability claims are attributed to Meta unless independently verified. Follow the original source for complete technical details, current availability, licensing and later updates.