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DeepSeek V3.1 vs Gemini 2.5 Flash Image

DeepSeek DeepSeek V3.1 vs Google Gemini 2.5 Flash Image — side-by-side specs.

DeepSeek
DeepSeek V3.1
Google
Gemini 2.5 Flash Image
Overview
CompanyDeepSeekGoogle
Release dateAug 21 2025Aug 26 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek V3.1 shipped 5 days before Gemini 2.5 Flash Image

Which is better: DeepSeek V3.1 or Gemini 2.5 Flash Image?

DeepSeek V3.1 and Gemini 2.5 Flash Image do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek V3.1 shipped 5 days before Gemini 2.5 Flash Image, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.1 is an open-source / open-weight model; Gemini 2.5 Flash Image 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 2.5 Flash Image released?
Gemini 2.5 Flash Image was released by Google on Aug 26 2025.
Is DeepSeek V3.1 or Gemini 2.5 Flash Image open source?
DeepSeek V3.1 is an open-source / open-weight model released by DeepSeek. Gemini 2.5 Flash Image is a proprietary model released by Google.

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