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	Claude 4.7 Opus Anthropic	Qwen3.6-27B Alibaba	Qwen3.7-Max Alibaba	Grok 4 xAI
Vendor	Anthropic	Alibaba	Alibaba	xAI
Family	Claude	Qwen	Qwen	Grok
Release date	2026-04-16	2026-04-22	2026-05-20	2025-07-09
Context window	1,000,000 tokens	262,144 tokens	1,000,000 tokens	256,000 tokens
Parameters	—	27B (dense)	—	—
Modality	text, vision	text, vision, video	text	text
License	proprietary	Apache-2.0	proprietary	proprietary
Source	proprietary	open weights	proprietary	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Description	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.	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.	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.	—
Links	vendor →	weights →	vendor →	vendor →
Benchmarks
MMLU-Pro	88.2%	78.9%	83.7%	82.8%
GPQA-D	90.1%	—	83.0%	87.5%
HumanEval	97.4%	91.5%	93.9%	—
Aider	91.2%	70.2%	78.4%	72.5%
AIME-25	93.5%	—	90.4%	86.1%
LiveCB	80.2%	—	71.0%	65.3%
MMMU	79.0%	70.3%	—	—