Composer 1
Composer 1.
2
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
Cursor Oct 2025
Composer 1
Closed weights Flagship
No Epoch Capabilities Index score yet
- SWE-fficiency 6.34% #10 /17
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-fficiency | 6.34% | #10 of 17 | Official leaderboard |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| LLM Chess | -812 | #123 of 124 | Official leaderboard |
Its launch post
The benchmarks the lab chose to headline, with the scores it gave.