Monthly-SWEBench-2026-03 is a curated benchmark of 112 real-world software engineering tasks, sourced from GitHub pull requests merged in March 2026. Tasks are in Harbor format and can be run with any Harbor-compatible agent.
View leaderboard and results →
112 tasks — 68 bugfix + 44 non-bugfix
Tasks span diverse open-source repositories
Each task includes a runnable environment, test suite, and reference solution
