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	o3 OpenAI	DeepSeek-V4-Pro DeepSeek	Claude 4.7 Opus Anthropic	DeepSeek-V4-Flash DeepSeek
Vendor	OpenAI	DeepSeek	Anthropic	DeepSeek
Family	o-series	DeepSeek	Claude	DeepSeek
Release date	2025-04-16	2026-04-22	2026-04-16	2026-04-22
Context window	200,000 tokens	1,000,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	1.6T (49B active)	—	284B (13B active)
Modality	text, vision	text	text, vision	text
License	proprietary	MIT	proprietary	MIT
Source	proprietary	open weights	proprietary	open weights
Description	Reasoning-focused model in the o-series.	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.	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.	Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE.
Links		weights →	vendor →	weights →
Benchmarks
MMLU-Pro	—	84.2%	88.2%	—
GPQA-D	87.7%	82.4%	90.1%	—
HumanEval	—	95.1%	97.4%	—
Aider	—	80.1%	91.2%	—
AIME-25	88.9%	88.6%	93.5%	—
LiveCB	—	72.4%	80.2%	—
MMMU	—	—	79.0%	—