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Composer 1.5 vs Ministral 3B

Cursor Composer 1.5 vs Mistral Ministral 3B — side-by-side specs.

Cursor
Composer 1.5
Mistral
Ministral 3B
Overview
CompanyCursorMistral
Release dateFeb 8 2026Oct 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapMinistral 3B shipped 495 days before Composer 1.5

Which is better: Composer 1.5 or Ministral 3B?

Composer 1.5 and Ministral 3B do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Ministral 3B shipped 495 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.

Ministral 3B is an open-source / open-weight model; Composer 1.5 is proprietary.

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 Ministral 3B released?
Ministral 3B was released by Mistral on Oct 2024.
Is Composer 1.5 or Ministral 3B open source?
Ministral 3B is an open-source / open-weight model released by Mistral. Composer 1.5 is a proprietary model released by Cursor.

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