Llama

In plain words

Llama 3.1 is an open-source AI model released by Meta in three sizes: 405B, 70B, and 8B. The largest model, 405B, is designed to compete with leading closed-source models like GPT-4o and Claude 3.5. The suite includes upgrades to smaller variants, offering developers flexible options for building AI applications. Available on GitHub, these models represent a significant shift toward open-source alternatives for advanced AI capabilities.

written from the facts on this page · September 2026

From the sources

Meta is releasing three models: The new 3.1-405B and upgrades to their smaller models: 3.1-70B and 3.1-8B. If 405B is as good as the benchmarks indicate, this would be the first time an open source model rivaled the best closed models—a profound shift.

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  Llama 3.3 70B2024 · developer.meta.com · ▲347

  Llama 405B-level performance, at a fraction of the cost

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  Llama 22023 · developer.meta.com · ▲263

  The next generation of Meta's open source LLM

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  Llama-dl – high-speed download of LLaMA, Facebook's 65B GPT model2023 · github.com · ▲343

  High-speed download of LLaMA, Facebook's 65B parameter GPT model - shawwn/llama-dl

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  Meta Llama 32024 · ai.meta.com · ▲159

  The most capable openly available LLM to date

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  Llama 42025 · developer.meta.com · ▲422

  A new era of natively multimodal AI innovation

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  Llama 3.2 Interpretability with Sparse Autoencoders2024 · github.com · ▲579

  I spent a lot of time and money on this rather big side project of mine that attempts to replicate the mechanistic interpretability research on proprietary LLMs that was quite popular this year and produced great research papers by Anthropic [1], OpenAI [2] and Deepmind [3]. I am quite proud of this project and since I consider myself the target audience for HackerNews did I think that maybe some of you would appreciate this open research replication as well. Happy to answer any questions or face any feedback. Cheers [1]…

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