by Meta
Muse Glimmer is Meta's latest frontier open-weights model, released August 2026. It rivals closed models on reasoning, coding, and multimodal tasks while remaining free to self-host. A top pick for builders who want frontier capability without vendor lock-in.
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Raw scores from public leaderboards (LMArena, OpenAI, Anthropic). Higher is better.
Language Understanding
Code Generation
Software Engineering
Math Reasoning
Graduate QA
Instruction Following
Chatbot Arena