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	Qwen3.7-Max Alibaba	Grok 4 xAI	Claude 4.7 Opus Anthropic	GPT-5.5 OpenAI
Vendor	Alibaba	xAI	Anthropic	OpenAI
Family	Qwen	Grok	Claude	GPT
Release date	2026-05-20	2025-07-09	2026-04-16	2026-04-23
Context window	1,000,000 tokens	256,000 tokens	1,000,000 tokens	400,000 tokens
Parameters	—	—	—	—
Modality	text	text	text, vision	text, vision, audio
License	proprietary	proprietary	proprietary	proprietary
Source	proprietary	proprietary	proprietary	proprietary
Description	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.	—	Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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.	OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning.
Links	vendor →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	83.7%	82.8%	88.2%	87.6%
GPQA-D	83.0%	87.5%	90.1%	89.4%
HumanEval	93.9%	—	97.4%	96.8%
Aider	78.4%	72.5%	91.2%	89.7%
AIME-25	90.4%	86.1%	93.5%	94.2%
LiveCB	71.0%	65.3%	80.2%	78.9%
MMMU	—	—	79.0%	78.4%