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Gemini 2.5 Pro vs o3-pro

3 vs 0 benchmarks won

Google
Gemini 2.5 Pro
OpenAI
o3-pro
Overview
CompanyGoogleOpenAI
Release dateMar 25 2025Jun 10 2025
Model type
Open sourceNoNo
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 77 days before o3-pro

Which is better: Gemini 2.5 Pro or o3-pro?

Gemini 2.5 Pro leads o3-pro on 3 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 2.5 Pro shipped 77 days before o3-pro, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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 Gemini 2.5 Pro released?
Gemini 2.5 Pro was released by Google on Mar 25 2025.
When was o3-pro released?
o3-pro was released by OpenAI on Jun 10 2025.

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