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Composer 2 vs GPT-5.4-Pro

0 vs 1 benchmarks won

Cursor
Composer 2
OpenAI
GPT-5.4-Pro
Overview
CompanyCursorOpenAI
Release dateMar 20 2026Mar 5 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.4%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGPT-5.4-Pro shipped 15 days before Composer 2

Which is better: Composer 2 or GPT-5.4-Pro?

GPT-5.4-Pro leads Composer 2 on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). GPT-5.4-Pro shipped 15 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 GPT-5.4-Pro released?
GPT-5.4-Pro was released by OpenAI on Mar 5 2026.

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