SCHEDBench (Solver Code): leaderboard
Metric: Feasibility rate (%; share of SCHEDBench natural-language scheduling instances whose model output satisfies all hard constraints, verified by OR-Tools CP-SAT; six canonical job-shop, project-scheduling, nurse-rostering and timetabling families; greedy decoding, zero-shot, no external solver; the model writes solver code executed in a sandbox rather than a schedule directly; full surface variation). Source: arxiv.org. Saturation forecast: Around December 2026. 9 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 (2026-03-05) | 39.6 |
| 2 | Qwen 3.5 397B A17B | 27.5 |
| 3 | Gemini 3.1 Flash Lite | 20.6 |
| 4 | Qwen 3.5 122B A10B | 19.4 |
| 5 | Qwen 3.5 27B | 14.6 |
| 6 | Claude Haiku 4.5 | 6 |
| 7 | Llama 4 Maverick | 1.3 |
| 8 | Llama 3.3 70B | 0.6 |
Interactive version: theaggregate.ai/benchmark?slug=schedbench-solver-code · How It Works · Data refreshed daily, snapshot 2026-09-26.