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	Grok 4 xAI	Llama 4 Maverick Meta	DeepSeek-V3.1 DeepSeek	DeepSeek-R1 DeepSeek
Vendor	xAI	Meta	DeepSeek	DeepSeek
Family	Grok	Llama	DeepSeek	DeepSeek
Release date	2025-07-09	2025-04-05	2025-08-21	2025-01-20
Context window	256,000 tokens	1,000,000 tokens	128,000 tokens	128,000 tokens
Parameters	—	400B	671B	671B
Modality	text	text, vision	text	text
License	proprietary	Llama 4 Community License	MIT	MIT
Source	proprietary	open weights	open weights	open weights
Description	—	Mixture-of-experts open-weight model from Meta.	Large MoE open-weight model. Predecessor to DeepSeek-V4.	Reasoning-focused open-weight model.
Links	vendor →	weights →	weights →	weights →