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Gemini 2.5 Flash Image vs o3

Google Gemini 2.5 Flash Image vs OpenAI o3 — side-by-side specs.

Google
Gemini 2.5 Flash Image
OpenAI
o3
Overview
CompanyGoogleOpenAI
Release dateAug 26 2025Apr 16 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapo3 shipped 132 days before Gemini 2.5 Flash Image

Which is better: Gemini 2.5 Flash Image or o3?

Gemini 2.5 Flash Image and o3 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o3 shipped 132 days before Gemini 2.5 Flash Image, 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 Flash Image released?
Gemini 2.5 Flash Image was released by Google on Aug 26 2025.
When was o3 released?
o3 was released by OpenAI on Apr 16 2025.

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