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	Claude 4.7 Opus Anthropic	o3 OpenAI	Qwen3.6-27B Alibaba	Claude 4.6 Sonnet Anthropic
Vendor	Anthropic	OpenAI	Alibaba	Anthropic
Family	Claude	o-series	Qwen	Claude
Release date	2026-04-16	2025-04-16	2026-04-22	2026-02-17
Context window	1,000,000 tokens	200,000 tokens	262,144 tokens	1,000,000 tokens
Parameters	—	—	27B (dense)	—
Modality	text, vision	text, vision	text, vision, video	text, vision
License	proprietary	proprietary	Apache-2.0	proprietary
Source	proprietary	proprietary	open weights	proprietary
Description	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.	Reasoning-focused model in the o-series.	Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input.	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.
Links	vendor →		weights →
Benchmarks
MMLU-Pro	88.2%	—	78.9%	85.4%
GPQA-D	90.1%	87.7%	—	85.8%
HumanEval	97.4%	—	91.5%	95.9%
Aider	91.2%	—	70.2%	83.6%
AIME-25	93.5%	88.9%	—	87.4%
LiveCB	80.2%	—	—	73.8%
MMMU	79.0%	—	70.3%	—