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Composer 2 vs o4-mini-high

Cursor Composer 2 vs OpenAI o4-mini-high — side-by-side specs.

Cursor
Composer 2
OpenAI
o4-mini-high
Overview
CompanyCursorOpenAI
Release dateMar 20 2026Apr 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 gapo4-mini-high shipped 338 days before Composer 2

Which is better: Composer 2 or o4-mini-high?

Composer 2 and o4-mini-high do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o4-mini-high shipped 338 days before Composer 2, 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 Composer 2 released?
Composer 2 was released by Cursor on Mar 20 2026.
When was o4-mini-high released?
o4-mini-high was released by OpenAI on Apr 16 2025.

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