Composer 1.5 vs Mistral Small 3
Cursor Composer 1.5 | Mistral Mistral Small 3 | |
|---|---|---|
| Overview | ||
| Company | Cursor | Mistral |
| Release date | Feb 9 2026 | Jan 2025 |
| Access | Proprietary | Open Weight |
| Benchmarks | ||
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. | 67% | — |
| Timeline | ||
| Release gap | Mistral Small 3 shipped 404 days before Composer 1.5 | |
Which is better: Composer 1.5 or Mistral Small 3?
Composer 1.5 and Mistral Small 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 3 shipped 404 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.
Composer 1.5 is proprietary, while Mistral Small 3 is open weight.
Direct benchmark comparisons are unavailable — Composer 1.5 and Mistral Small 3 don't publish scores on any of the same benchmarks.
Frequently asked questions
Composer 1.5 was released by Cursor on Feb 9 2026.
Mistral Small 3 was released by Mistral on Jan 2025.
Composer 1.5 is a proprietary model released by Cursor. Mistral Small 3 is an open weight model released by Mistral.
Other comparisons
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