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	GPT-5.5 OpenAI	Grok 4 xAI	Qwen3.7-Max Alibaba	Gemini 3.5 Google
Vendor	OpenAI	xAI	Alibaba	Google
Family	GPT	Grok	Qwen	Gemini
Release date	2026-04-23	2025-07-09	2026-05-20	2026-05-20
Context window	400,000 tokens	256,000 tokens	1,000,000 tokens	2,000,000 tokens
Parameters	—	—	—	—
Modality	text, vision, audio	text	text	text, vision, audio, video
License	proprietary	proprietary	proprietary	proprietary
Source	proprietary	proprietary	proprietary	proprietary
Description	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.	—	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.	Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026.
Links	vendor →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	87.6%	82.8%	83.7%	88.9%
GPQA-D	89.4%	87.5%	83.0%	91.2%
HumanEval	96.8%	—	93.9%	—
Aider	89.7%	72.5%	78.4%	—
AIME-25	94.2%	86.1%	90.4%	96.1%
LiveCB	78.9%	65.3%	71.0%	—
MMMU	78.4%	—	—	86.0%