Coding
Code that has to run, not just read well.
Professional engineers write and repair real software tasks — from single functions to repository-scale changes. Every solution ships with the tests that prove it, and every review explains why one patch beats another.
- Repository-level issue resolution
- Verified solutions with unit tests
- Code review and pairwise critique
- Multi-language SFT and RL tasks
- Coding benchmarks and hold-out evals
✓ executed in sandbox · tests pass · reviewer sign-off