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	Gemini 3 Pro Google	DeepSeek-V4-Pro DeepSeek	Gemini 3.5 Google	GPT-5 OpenAI
Vendor	Google	DeepSeek	Google	OpenAI
Family	Gemini	DeepSeek	Gemini	GPT
Release date	2026-04-22	2026-04-22	2026-05-20	2025-08-07
Context window	2,000,000 tokens	1,000,000 tokens	2,000,000 tokens	400,000 tokens
Parameters	—	1.6T (49B active)	—	—
Modality	text, vision, audio, video	text	text, vision, audio, video	text, vision, audio
License	proprietary	MIT	proprietary	proprietary
Source	proprietary	open weights	proprietary	proprietary
Description	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.	DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs.	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 flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	vendor →	weights →	vendor →	vendor →
Benchmarks
MMLU-Pro	87.1%	84.2%	88.9%	85.1%
GPQA-D	88.6%	82.4%	91.2%	87.3%
HumanEval	96.5%	95.1%	—	95.2%
Aider	84.8%	80.1%	—	85.4%
AIME-25	92.8%	88.6%	96.1%	91.0%
LiveCB	76.1%	72.4%	—	74.5%
MMMU	84.3%	—	86.0%	74.1%