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	o3 OpenAI	DeepSeek-R1 DeepSeek	Claude 4.6 Sonnet Anthropic	Claude 4.7 Opus Anthropic
Vendor	OpenAI	DeepSeek	Anthropic	Anthropic
Family	o-series	DeepSeek	Claude	Claude
Release date	2025-04-16	2025-01-20	2026-02-17	2026-04-16
Context window	200,000 tokens	128,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	671B	—	—
Modality	text, vision	text	text, vision	text, vision
License	proprietary	MIT	proprietary	proprietary
Source	proprietary	open weights	proprietary	proprietary
Description	Reasoning-focused model in the o-series.	Reasoning-focused open-weight model.	Anthropic's mid-tier flagship — released 12 days after Opus 4.6 and matching most of its capabilities at ~40% the API cost ($3/$15 per 1M tokens). 1M-token context.	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.
Links		weights →		vendor →
Benchmarks
MMLU-Pro	—	—	85.4%	88.2%
GPQA-D	87.7%	—	85.8%	90.1%
HumanEval	—	—	95.9%	97.4%
Aider	—	—	83.6%	91.2%
AIME-25	88.9%	79.8%	87.4%	93.5%
LiveCB	—	—	73.8%	80.2%
MMMU	—	—	—	79.0%