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Gemini 1.0 Pro vs o3

Google Gemini 1.0 Pro vs OpenAI o3 — side-by-side specs.

Google
Gemini 1.0 Pro
OpenAI
o3
Overview
CompanyGoogleOpenAI
Release dateDec 13 2023Apr 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 gapGemini 1.0 Pro shipped 490 days before o3

Which is better: Gemini 1.0 Pro or o3?

Gemini 1.0 Pro and o3 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 1.0 Pro shipped 490 days before o3, 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 1.0 Pro released?
Gemini 1.0 Pro was released by Google on Dec 13 2023.
When was o3 released?
o3 was released by OpenAI on Apr 16 2025.

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