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Gemini 3.5×

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	Gemini 3.5 Google	GPT-5.5 OpenAI	Qwen3.7-Max Alibaba	DeepSeek-V3.1 DeepSeek
Vendor	Google	OpenAI	Alibaba	DeepSeek
Family	Gemini	GPT	Qwen	DeepSeek
Release date	2026-05-20	2026-04-23	2026-05-20	2025-08-21
Context window	2,000,000 tokens	400,000 tokens	1,000,000 tokens	128,000 tokens
Parameters	—	—	—	671B
Modality	text, vision, audio, video	text, vision, audio	text	text
License	proprietary	proprietary	proprietary	MIT
Source	proprietary	proprietary	proprietary	open weights
Description	Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026.	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.	Large MoE open-weight model. Predecessor to DeepSeek-V4.
Links	vendor →	vendor →	vendor →	weights →
Benchmarks
MMLU-Pro	88.9%	87.6%	83.7%	—
GPQA-D	91.2%	89.4%	83.0%	—
HumanEval	—	96.8%	93.9%	—
Aider	—	89.7%	78.4%	—
AIME-25	96.1%	94.2%	90.4%	—
LiveCB	—	78.9%	71.0%	—
MMMU	86.0%	78.4%	—	—