Composer 2.5 vs Codestral Mamba 7B
Cursor Composer 2.5 | Mistral Codestral Mamba 7B | |
|---|---|---|
| Overview | ||
| Company | Cursor | Mistral |
| Release date | May 18 2026 | Jul 16 2024 |
| Access | Proprietary | Open Weight |
| Benchmarks | ||
Multilingual coding SWE-Bench MultilingualLike SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better. | 79.8% | — |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | 63.2% | — |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | 92% | — |
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | 69.3% | — |
| Timeline | ||
| Release gap | Codestral Mamba 7B shipped 671 days before Composer 2.5 | |
Which is better: Composer 2.5 or Codestral Mamba 7B?
Composer 2.5 and Codestral Mamba 7B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral Mamba 7B shipped 671 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.
Composer 2.5 is proprietary, while Codestral Mamba 7B is open weight.
Direct benchmark comparisons are unavailable — Composer 2.5 and Codestral Mamba 7B don't publish scores on any of the same benchmarks.
Frequently asked questions
Composer 2.5 was released by Cursor on May 18 2026.
Codestral Mamba 7B was released by Mistral on Jul 16 2024.
Composer 2.5 is a proprietary model released by Cursor. Codestral Mamba 7B is an open weight model released by Mistral.
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