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	DeepSeek-V3.1 DeepSeek	Qwen3.7-Max Alibaba	GPT-5.5 OpenAI	Gemini 3 Pro Google
Vendor	DeepSeek	Alibaba	OpenAI	Google
Family	DeepSeek	Qwen	GPT	Gemini
Release date	2025-08-21	2026-05-20	2026-04-23	2026-04-22
Context window	128,000 tokens	1,000,000 tokens	400,000 tokens	2,000,000 tokens
Parameters	671B	—	—	—
Modality	text	text	text, vision, audio	text, vision, audio, video
License	MIT	proprietary	proprietary	proprietary
Source	open weights	proprietary	proprietary	proprietary
Description	Large MoE open-weight model. Predecessor to DeepSeek-V4.	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.	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.
Links	weights →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	—	83.7%	87.6%	87.1%
GPQA-D	—	83.0%	89.4%	88.6%
HumanEval	—	93.9%	96.8%	96.5%
Aider	—	78.4%	89.7%	84.8%
AIME-25	—	90.4%	94.2%	92.8%
LiveCB	—	71.0%	78.9%	76.1%
MMMU	—	—	78.4%	84.3%