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DeepSeek V3.1 vs Gemini 1.0 Ultra

DeepSeek DeepSeek V3.1 vs Google Gemini 1.0 Ultra — side-by-side specs.

DeepSeek
DeepSeek V3.1
Google
Gemini 1.0 Ultra
Overview
CompanyDeepSeekGoogle
Release dateAug 21 2025Feb 8 2024
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGemini 1.0 Ultra shipped 560 days before DeepSeek V3.1

Which is better: DeepSeek V3.1 or Gemini 1.0 Ultra?

DeepSeek V3.1 and Gemini 1.0 Ultra do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 1.0 Ultra shipped 560 days before DeepSeek V3.1, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.1 is an open-source / open-weight model; Gemini 1.0 Ultra is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was DeepSeek V3.1 released?
DeepSeek V3.1 was released by DeepSeek on Aug 21 2025.
When was Gemini 1.0 Ultra released?
Gemini 1.0 Ultra was released by Google on Feb 8 2024.
Is DeepSeek V3.1 or Gemini 1.0 Ultra open source?
DeepSeek V3.1 is an open-source / open-weight model released by DeepSeek. Gemini 1.0 Ultra is a proprietary model released by Google.

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