The authors identify that plateauing scores on the SciCode benchmark stem from significant defects in the evaluation instrument rather than limitations in model capability. A domain-expert audit of 65 test problems uncovered 263 defects, with 192 causing correct solutions to be wrongly rejected due to issues like non-reproducible gold answers and over-tight tolerances.
- The team corrected every confirmable defect to create SciCode-Verified, adding necessary specifications and repairing grading logic.
- Re-evaluating twelve frontier model snapshots on the corrected benchmark showed subproblem accuracy rising from 45–60% to 84–98%.
- Main-problem accuracy increased significantly from 9–27% to 69–92%, demonstrating that state-of-the-art models are far more proficient than previously suggested.
The authors release SciCode-Verified with its complete audit trail as the corrected public standard, establishing that the previous bottleneck was the quality of the evaluation instrument.