Llama 2
The next generation of Meta's open source LLM
Llama 2 launched on July 19, 2023 with 263 votes, #117 of 4,347 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Llama 2 is Meta's open source large language model designed for improved language generation with enhanced safety features. It is intended for developers and researchers building AI applications, with commercial use explicitly authorized. The model comes with support from a broad partner ecosystem and is available on GitHub, making it accessible for building bots and other AI-powered applications.
written from the facts on this page · September 2026
From the sources
Better language generation, more layers of safety, a broad set of partners – and a license that authorizes commercial use.
Build with Meta's AI models and tools. Access Muse Spark through Muse Code and Meta Model API with resources to get started.
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Llama 3.3 70B2024 · developer.meta.com · ▲347Llama 405B-level performance, at a fraction of the cost


A fully open-source (Apache 2.0)implementation of llama2023 · github.com · ▲158We believe that AI should be fully open source and part of the collective knowledge. The original LLaMA code is GPL licensed which means any project using it must also be released under GPL. This "taints" any other code and prevents meaningful academic and commercial use. Lit-LLaMA solves that for good.


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