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Gemini Omni vs GPT-5 mini

Google Gemini Omni vs OpenAI GPT-5 mini — side-by-side specs.

Google
Gemini Omni
OpenAI
GPT-5 mini
Overview
CompanyGoogleOpenAI
Release dateMay 19 2026Aug 7 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGPT-5 mini shipped 285 days before Gemini Omni

Which is better: Gemini Omni or GPT-5 mini?

Gemini Omni and GPT-5 mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. GPT-5 mini shipped 285 days before Gemini Omni, 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 Omni released?
Gemini Omni was released by Google on May 19 2026.
When was GPT-5 mini released?
GPT-5 mini was released by OpenAI on Aug 7 2025.

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