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	Llama 4 Scout Meta	Llama 4 Maverick Meta	GPT-5.5 OpenAI	DeepSeek-V3.1 DeepSeek
Vendor	Meta	Meta	OpenAI	DeepSeek
Family	Llama	Llama	GPT	DeepSeek
Release date	2025-04-05	2025-04-05	2026-04-23	2025-08-21
Context window	10,000,000 tokens	1,000,000 tokens	400,000 tokens	128,000 tokens
Parameters	109B	400B	—	671B
Modality	text, vision	text, vision	text, vision, audio	text
License	Llama 4 Community License	Llama 4 Community License	proprietary	MIT
Source	open weights	open weights	proprietary	open weights
Description	—	Mixture-of-experts open-weight model from Meta.	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.	Large MoE open-weight model. Predecessor to DeepSeek-V4.
Links	weights →	weights →	vendor →	weights →