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DeepSeek Coder V2 vs Gemini 3.1 Flash

DeepSeek DeepSeek Coder V2 vs Google Gemini 3.1 Flash — side-by-side specs.

DeepSeek
DeepSeek Coder V2
Google
Gemini 3.1 Flash
Overview
CompanyDeepSeekGoogle
Release dateJun 2024Feb 26 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek Coder V2 shipped 635 days before Gemini 3.1 Flash

Which is better: DeepSeek Coder V2 or Gemini 3.1 Flash?

DeepSeek Coder V2 and Gemini 3.1 Flash do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Coder V2 shipped 635 days before Gemini 3.1 Flash, so benchmark comparisons should account for the intervening progress.

DeepSeek Coder V2 is an open-source / open-weight model; Gemini 3.1 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 Coder V2 released?
DeepSeek Coder V2 was released by DeepSeek on Jun 2024.
When was Gemini 3.1 Flash released?
Gemini 3.1 Flash was released by Google on Feb 26 2026.
Is DeepSeek Coder V2 or Gemini 3.1 Flash open source?
DeepSeek Coder V2 is an open-source / open-weight model released by DeepSeek. Gemini 3.1 Flash is a proprietary model released by Google.

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