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	DeepSeek-V3.1 DeepSeek	GPT-5.6 Sol OpenAI	Gemini Omni Google	DeepSeek-V4-Flash DeepSeek
Vendor	DeepSeek	OpenAI	Google	DeepSeek
Family	DeepSeek	GPT	Gemini	DeepSeek
Release date	2025-08-21	2026-06-26	2026-05-20	2026-04-22
Context window	128,000 tokens	—	1,000,000 tokens	1,000,000 tokens
Parameters	671B	—	—	284B (13B active)
Modality	text	text, vision, audio	text, vision, audio, video	text
License	MIT	proprietary	proprietary	MIT
Source	open weights	proprietary	proprietary	open weights
Description	Large MoE open-weight model. Predecessor to DeepSeek-V4.	Flagship of OpenAI's GPT-5.6 three-model suite (Sol / Terra / Luna), released as a limited preview. Strong gains in coding, cybersecurity, biology, and long-horizon agentic work. Pricing: $5 / $30 per million input/output tokens.	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE.
Links	weights →	vendor →	vendor →	weights →
Benchmarks
MMMU	—	—	82.5%	—