AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Composer vs o1-pro

Cursor
Composer
OpenAI
o1-pro
Overview
CompanyCursorOpenAI
Release dateOct 29 2025Mar 19 2025
AccessProprietaryProprietary
Timeline
Release gapo1-pro shipped 224 days before Composer

Which is better: Composer or o1-pro?

Composer and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-pro shipped 224 days before Composer, 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 — Composer and o1-pro don't publish scores on any of the same benchmarks.

Frequently asked questions

Composer was released by Cursor on Oct 29 2025.

o1-pro was released by OpenAI on Mar 19 2025.

Other comparisons