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DeepSeek V3.1 Terminus vs Gemini 2.5 Pro

0 vs 3 benchmarks won

DeepSeek
DeepSeek V3.1 Terminus
Google
Gemini 2.5 Pro
Overview
CompanyDeepSeekGoogle
Release dateSep 22 2025Mar 25 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
86.4%
Software engineering
SWE-Bench Verified
59.6%
Multimodal understanding
MMMU
68%
Timeline
Release gapGemini 2.5 Pro shipped 181 days before DeepSeek V3.1 Terminus

Which is better: DeepSeek V3.1 Terminus or Gemini 2.5 Pro?

Gemini 2.5 Pro leads DeepSeek V3.1 Terminus on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Pro shipped 181 days before DeepSeek V3.1 Terminus, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.1 Terminus is an open-source / open-weight model; Gemini 2.5 Pro 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 Terminus released?
DeepSeek V3.1 Terminus was released by DeepSeek on Sep 22 2025.
When was Gemini 2.5 Pro released?
Gemini 2.5 Pro was released by Google on Mar 25 2025.
Is DeepSeek V3.1 Terminus or Gemini 2.5 Pro open source?
DeepSeek V3.1 Terminus is an open-source / open-weight model released by DeepSeek. Gemini 2.5 Pro is a proprietary model released by Google.

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