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	GPT-5.5 OpenAI	Gemini 3 Pro Google	Qwen3.7-Max Alibaba	DeepSeek-V3.1 DeepSeek
Vendor	OpenAI	Google	Alibaba	DeepSeek
Family	GPT	Gemini	Qwen	DeepSeek
Release date	2026-04-23	2026-04-22	2026-05-20	2025-08-21
Context window	400,000 tokens	2,000,000 tokens	1,000,000 tokens	128,000 tokens
Parameters	—	—	—	671B
Modality	text, vision, audio	text, vision, audio, video	text	text
License	proprietary	proprietary	proprietary	MIT
Source	proprietary	proprietary	proprietary	open weights
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.	Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers.	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.	Large MoE open-weight model. Predecessor to DeepSeek-V4.
Links	vendor →	vendor →	vendor →	weights →
Benchmarks
MMLU-Pro	87.6%	87.1%	83.7%	—
GPQA-D	89.4%	88.6%	83.0%	—
HumanEval	96.8%	96.5%	93.9%	—
Aider	89.7%	84.8%	78.4%	—
AIME-25	94.2%	92.8%	90.4%	—
LiveCB	78.9%	76.1%	71.0%	—
MMMU	78.4%	84.3%	—	—