WTM-Bench (Python) - Formulas: leaderboard
Metric: Soft score (%; partial-credit similarity to the target workbook on the level-3 tasks whose primary artifact is formulas; the model drives Excel through Python with openpyxl; 150 WTM-Bench tasks at query level 3 (concise, abstract requests); the authors' tool-calling loop that executes code against the workbook, shows the resulting workbook state and allows up to 10 turns; deterministic programmatic grading). Source: arxiv.org. Saturation forecast: Around December 2026. 6 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Opus 4.6 | 65 |
| 2 | GPT-5.4 | 62 |
| 3 | Claude Sonnet 4.5 | 59 |
| 4 | GPT-5.2 | 59 |
| 5 | Claude Haiku 4.5 | 43 |
| 6 | GPT-4.1 Mini | 32 |
Interactive version: theaggregate.ai/benchmark?slug=wtm-bench-python-formulas · How It Works · Data refreshed daily, snapshot 2026-09-29.