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DeepSeek-V4-Pro×

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	DeepSeek-V4-Pro DeepSeek	GPT-5.5 OpenAI	Claude 4.7 Opus Anthropic	GPT-5 OpenAI
Vendor	DeepSeek	OpenAI	Anthropic	OpenAI
Family	DeepSeek	GPT	Claude	GPT
Release date	2026-04-22	2026-04-23	2026-04-16	2025-08-07
Context window	1,000,000 tokens	400,000 tokens	1,000,000 tokens	400,000 tokens
Parameters	1.6T (49B active)	—	—	—
Modality	text	text, vision, audio	text, vision	text, vision, audio
License	MIT	proprietary	proprietary	proprietary
Source	open weights	proprietary	proprietary	proprietary
Description	DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs.	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.	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle). Optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	weights →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	84.2%	87.6%	88.2%	85.1%
GPQA-D	82.4%	89.4%	90.1%	87.3%
HumanEval	95.1%	96.8%	97.4%	95.2%
Aider	80.1%	89.7%	91.2%	85.4%
AIME-25	88.6%	94.2%	93.5%	91.0%
LiveCB	72.4%	78.9%	80.2%	74.5%
MMMU	—	78.4%	79.0%	74.1%