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GPT-4o vs o4-mini

OpenAI GPT-4o vs OpenAI o4-mini — side-by-side specs.

OpenAI
GPT-4o
OpenAI
o4-mini
Overview
CompanyOpenAIOpenAI
Release dateMay 13 2024Apr 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 gapGPT-4o shipped 338 days before o4-mini

Which is better: GPT-4o or o4-mini?

GPT-4o and o4-mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. GPT-4o shipped 338 days before o4-mini, 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 GPT-4o released?
GPT-4o was released by OpenAI on May 13 2024.
When was o4-mini released?
o4-mini was released by OpenAI on Apr 16 2025.

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