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Llama 4 · 405B
by Meta AIMeta's open-weights frontier — 405B parameters, licensed for commercial use.
TextVisionFunction CallingReasoningCodeOpen Weights
Developer
Meta AI
Release Date
Mar 30, 2026
Context
256K
API Pricing
Free (self-host) · $0.90/1M via providers
Status
Available
Model Type
Multimodal
About Llama 4 · 405B
Llama 4 405B is Meta's open-weights flagship — the largest openly available model in mid-2026 and the strongest for teams that need to self-host. 256K context window, function calling, vision-language capability and permissive licensing for commercial use up to a headcount cap.
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