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GPT-4.1 mini vs o3-mini

OpenAI GPT-4.1 mini vs OpenAI o3-mini — side-by-side specs.

OpenAI
GPT-4.1 mini
OpenAI
o3-mini
Overview
CompanyOpenAIOpenAI
Release dateMay 14 2025Jan 31 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-mini shipped 103 days before GPT-4.1 mini

Which is better: GPT-4.1 mini or o3-mini?

GPT-4.1 mini and o3-mini do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o3-mini shipped 103 days before GPT-4.1 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-4.1 mini released?
GPT-4.1 mini was released by OpenAI on May 14 2025.
When was o3-mini released?
o3-mini was released by OpenAI on Jan 31 2025.

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