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	GPT-5.5 OpenAI	DeepSeek-R1 DeepSeek	Llama 4 Maverick Meta	Claude 4.7 Opus Anthropic
Vendor	OpenAI	DeepSeek	Meta	Anthropic
Family	GPT	DeepSeek	Llama	Claude
Release date	2026-04-23	2025-01-20	2025-04-05	2026-04-16
Context window	400,000 tokens	128,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	671B	400B	—
Modality	text, vision, audio	text	text, vision	text, vision
License	proprietary	MIT	Llama 4 Community License	proprietary
Source	proprietary	open weights	open weights	proprietary
Description	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.	Reasoning-focused open-weight model.	Mixture-of-experts open-weight model from Meta.	Anthropic's most capable model, optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6.
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