Cursor Composer 1.5 vs DeepSeek DeepSeek R1-0528 — side-by-side specs.
Cursor Composer 1.5 | DeepSeek DeepSeek R1-0528 | |
|---|---|---|
| Overview | ||
| Company | Cursor | DeepSeek |
| Release date | Feb 8 2026 | May 28 2025 |
| Model type | — | — |
| Open source | No | Yes |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | — | — |
Software engineering SWE-Bench Verified | — | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | DeepSeek R1-0528 shipped 256 days before Composer 1.5 | |
Composer 1.5 and DeepSeek R1-0528 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek R1-0528 shipped 256 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.
DeepSeek R1-0528 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.