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

Home/Compare/Composer 2 vs Gemini 3.1 Pro

Composer 2 vs Gemini 3.1 Pro

0 vs 2 benchmarks won

Cursor
Composer 2
Google
Gemini 3.1 Pro
Overview
CompanyCursorGoogle
Release dateMar 20 2026Feb 19 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.3%
Software engineering
SWE-Bench Verified
80.6%
Multimodal understanding
MMMU
Timeline
Release gapGemini 3.1 Pro shipped 29 days before Composer 2

Which is better: Composer 2 or Gemini 3.1 Pro?

Gemini 3.1 Pro leads Composer 2 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 3.1 Pro shipped 29 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 Gemini 3.1 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.

Other comparisons