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

Home/Compare/Composer 1.5 vs Gemini 3.1 Flash

Composer 1.5 vs Gemini 3.1 Flash

Cursor Composer 1.5 vs Google Gemini 3.1 Flash — side-by-side specs.

Cursor
Composer 1.5
Google
Gemini 3.1 Flash
Overview
CompanyCursorGoogle
Release dateFeb 8 2026Feb 26 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapComposer 1.5 shipped 18 days before Gemini 3.1 Flash

Which is better: Composer 1.5 or Gemini 3.1 Flash?

Composer 1.5 and Gemini 3.1 Flash do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Composer 1.5 shipped 18 days before Gemini 3.1 Flash, 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 1.5 released?
Composer 1.5 was released by Cursor on Feb 8 2026.
When was Gemini 3.1 Flash released?
Gemini 3.1 Flash was released by Google on Feb 26 2026.

Other comparisons