TaxCalcBench — leaderboard
Metric: Correct Returns - Strict (%). Source: github.com. 12 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Fable 5 | 26 |
| 2 | GPT-5.6 Sol | 26 |
| 3 | GPT-5.5 | 24 |
| 4 | Claude Opus 4.8 | 16 |
| 5 | Kimi K3 | 6 |
| 6 | Claude Sonnet 5 | 6 |
| 7 | Gemini 3.5 Flash | 4 |
| 8 | Gemini 3.1 Pro (Preview) | 2 |
Interactive version: theaggregate.ai/benchmark?slug=taxcalcbench · How the rankings work · Data refreshed daily, snapshot 2026-07-22.