Introducing Composer 2 (Cursor blog) Mar 19, 2026
Composer 2
Composer 2.
6
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
Cursor Mar 2026
Composer 2
Closed weights Flagship
No Epoch Capabilities Index score yet
- CursorBench 3.1 61.3% #4 /5
- SlopCodeBench 16.3% #17 /22
- SWE-bench Multilingual 73.7% #34 /73
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| SWE-bench Multilingual | 73.7% | #34 of 73 | Lab model card | |
| SlopCodeBench | 16.3% | #17 of 22 | Official leaderboard | |
| CursorBench 3.1 | 61.3% | #4 of 5 | Lab model card | |
| CursorBench | 61.3% | #1 of 1 | Lab model card |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Terminal-Bench 2.0 | 61.7% | #17 of 63 | Lab model card | |
| LLM Chess | -63 | #71 of 123 | Official leaderboard |
Its launch post
The benchmarks the lab chose to headline, with the scores it gave.
Its system card
Every result in the longer documents the lab published with it. 1 of them isn't in the launch post.
Composer 2 Technical Report Mar 25, 2026
Capabilities
- CursorBench 61.3
- SWE-bench Multilingual 73.7
- Terminal-Bench 2.0 61.7