Cursor Composer 1.5 vs DeepSeek DeepSeek V3 Chat — side-by-side specs.
Cursor Composer 1.5 | DeepSeek DeepSeek V3 Chat | |
|---|---|---|
| Overview | ||
| Company | Cursor | DeepSeek |
| Release date | Feb 8 2026 | Dec 2024 |
| Model type | — | — |
| Open source | No | Yes |
| Specifications | ||
Parameters | — | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | DeepSeek V3 Chat shipped 434 days before Composer 1.5 | |
Composer 1.5 and DeepSeek V3 Chat don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3 Chat shipped 434 days before Composer 1.5, so benchmark comparisons should account for the intervening progress.
DeepSeek V3 Chat is an open-source / open-weight model; Composer 1.5 is proprietary.
Direct benchmark comparisons are unavailable — Composer 1.5 and DeepSeek V3 Chat don't publish scores on any of the same benchmarks.