Meta AI (formerly FAIR) is the AI research and deployment division of Meta Platforms. It ships the Llama open-weights model family (Llama 2/3/4), the Segment Anything Model, Meta AI assistant on WhatsApp/Instagram and Ray-Ban Meta Smart Glasses AI features.
Llama models are open-weights with a permissive licence that allows commercial use up to 700M monthly active users — a soft cap most companies never hit.
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