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

Composer vs o1

Cursor
Composer
OpenAI
o1
Overview
CompanyCursorOpenAI
Release dateOct 29 2025Dec 5 2024
AccessProprietaryProprietary
Timeline
Release gapo1 shipped 328 days before Composer

Which is better: Composer or o1?

Composer and o1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1 shipped 328 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 don't publish scores on any of the same benchmarks.

Frequently asked questions

Composer was released by Cursor on Oct 29 2025.

o1 was released by OpenAI on Dec 5 2024.

Other comparisons