Composer 1.5 vs DeepSeek-Math
Cursor Composer 1.5 | DeepSeek DeepSeek-Math | |
|---|---|---|
| Overview | ||
| Company | Cursor | DeepSeek |
| Release date | Feb 9 2026 | Apr 3 2024 |
| 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 | DeepSeek-Math shipped 677 days before Composer 1.5 | |
Which is better: Composer 1.5 or DeepSeek-Math?
Composer 1.5 and DeepSeek-Math don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-Math shipped 677 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.
Composer 1.5 is proprietary, while DeepSeek-Math is open weight.
Direct benchmark comparisons are unavailable — Composer 1.5 and DeepSeek-Math don't publish scores on any of the same benchmarks.
Frequently asked questions
Composer 1.5 was released by Cursor on Feb 9 2026.
DeepSeek-Math was released by DeepSeek on Apr 3 2024.
Composer 1.5 is a proprietary model released by Cursor. DeepSeek-Math is an open weight model released by DeepSeek.
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