Leaderboard

ServeLearnBench leaderboard

Avg. Hidden averages the nine Hidden-Dependent settings and Avg. Fully Spec. the six Retail and Banking Fully Specified settings, each setting counted once. API cost is the total over nine settings, serving stream, learning work and test included.

Results snapshot 2026-09-25. One run per cell. Prime was not run with Opus 5 and GPT-5.6 Terra because of its cost. The frontier view plots Avg. Hidden against the cost of one held-out test task; the staircase is the Pareto frontier.
Breakdown

Hidden score by setting

Each cell is a setting score on the held-out test tasks. Darker is better; hover for the value.