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Composer 2 vs Ministral 3 3B-25-12

Cursor Composer 2 vs Mistral Ministral 3 3B-25-12 — side-by-side specs.

Cursor
Composer 2
Mistral
Ministral 3 3B-25-12
Overview
CompanyCursorMistral
Release dateMar 20 2026Dec 2 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Multilingual coding
SWE-Bench Multilingual
73.7%
Agentic coding
CursorBench v3.1
52.2%
Agentic terminal coding
Terminal-Bench 2.0
61.7%
Timeline
Release gapMinistral 3 3B-25-12 shipped 108 days before Composer 2

Which is better: Composer 2 or Ministral 3 3B-25-12?

Composer 2 and Ministral 3 3B-25-12 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Ministral 3 3B-25-12 shipped 108 days before Composer 2, so benchmark comparisons should account for the intervening progress.

Ministral 3 3B-25-12 is an open-source / open-weight model; Composer 2 is proprietary.

Direct benchmark comparisons are unavailable — Composer 2 and Ministral 3 3B-25-12 don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Composer 2 released?
Composer 2 was released by Cursor on Mar 20 2026.
When was Ministral 3 3B-25-12 released?
Ministral 3 3B-25-12 was released by Mistral on Dec 2 2025.
Is Composer 2 or Ministral 3 3B-25-12 open source?
Ministral 3 3B-25-12 is an open-source / open-weight model released by Mistral. Composer 2 is a proprietary model released by Cursor.

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