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Composer vs Codestral Mamba 7B

Cursor Composer vs Mistral Codestral Mamba 7B — side-by-side specs.

Cursor
Composer
Mistral
Codestral Mamba 7B
Overview
CompanyCursorMistral
Release dateOct 29 2025Jul 16 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapCodestral Mamba 7B shipped 470 days before Composer

Which is better: Composer or Codestral Mamba 7B?

Composer and Codestral Mamba 7B do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Codestral Mamba 7B shipped 470 days before Composer, so benchmark comparisons should account for the intervening progress.

Codestral Mamba 7B is an open-source / open-weight model; Composer 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 released?
Composer was released by Cursor on Oct 29 2025.
When was Codestral Mamba 7B released?
Codestral Mamba 7B was released by Mistral on Jul 16 2024.
Is Composer or Codestral Mamba 7B open source?
Codestral Mamba 7B is an open-source / open-weight model released by Mistral. Composer is a proprietary model released by Cursor.

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