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Llama 4 Maverick×

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	Llama 4 Maverick Meta	DeepSeek-R1 DeepSeek	DeepSeek-V3.1 DeepSeek	GPT-5.5 OpenAI
Vendor	Meta	DeepSeek	DeepSeek	OpenAI
Family	Llama	DeepSeek	DeepSeek	GPT
Release date	2025-04-05	2025-01-20	2025-08-21	2026-04-23
Context window	1,000,000 tokens	128,000 tokens	128,000 tokens	400,000 tokens
Parameters	400B	671B	671B	—
Modality	text, vision	text	text	text, vision, audio
License	Llama 4 Community License	MIT	MIT	proprietary
Source	open weights	open weights	open weights	proprietary
Description	Mixture-of-experts open-weight model from Meta.	Reasoning-focused open-weight model.	Large MoE open-weight model. Predecessor to DeepSeek-V4.	OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.
Links	weights →	weights →	weights →	vendor →