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	Claude 4.6 Sonnet Anthropic	Qwen3.7-Max Alibaba	Qwen3.6-27B Alibaba	o3 OpenAI
Vendor	Anthropic	Alibaba	Alibaba	OpenAI
Family	Claude	Qwen	Qwen	o-series
Release date	2026-02-17	2026-05-20	2026-04-22	2025-04-16
Context window	1,000,000 tokens	1,000,000 tokens	262,144 tokens	200,000 tokens
Parameters	—	—	27B (dense)	—
Modality	text, vision	text	text, vision, video	text, vision
License	proprietary	proprietary	Apache-2.0	proprietary
Source	proprietary	proprietary	open weights	proprietary
Description	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.	Alibaba's flagship agent model — 1M-token context, extended-thinking mode, 56.6 on the Artificial Analysis Intelligence Index v4.0 (5th overall, #1 Chinese). 50.8% on Terminal-Bench Hard. Designed for long-horizon agent workloads (hundreds-to-thousands of steps). Closed-weight, $2.50/$7.50 per 1M tokens.	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.	Reasoning-focused model in the o-series.
Links		vendor →	weights →
Benchmarks
MMLU-Pro	85.4%	83.7%	78.9%	—
GPQA-D	85.8%	83.0%	—	87.7%
HumanEval	95.9%	93.9%	91.5%	—
Aider	83.6%	78.4%	70.2%	—
AIME-25	87.4%	90.4%	—	88.9%
LiveCB	73.8%	71.0%	—	—
MMMU	—	—	70.3%	—