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DeepSeek V3.1 vs Gemini 2.0 Flash

DeepSeek DeepSeek V3.1 vs Google Gemini 2.0 Flash — side-by-side specs.

DeepSeek
DeepSeek V3.1
Google
Gemini 2.0 Flash
Overview
CompanyDeepSeekGoogle
Release dateAug 21 2025Jan 30 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGemini 2.0 Flash shipped 203 days before DeepSeek V3.1

Which is better: DeepSeek V3.1 or Gemini 2.0 Flash?

DeepSeek V3.1 and Gemini 2.0 Flash do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 2.0 Flash shipped 203 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 2.0 Flash 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 2.0 Flash released?
Gemini 2.0 Flash was released by Google on Jan 30 2025.
Is DeepSeek V3.1 or Gemini 2.0 Flash open source?
DeepSeek V3.1 is an open-source / open-weight model released by DeepSeek. Gemini 2.0 Flash is a proprietary model released by Google.

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