# Terminal-Bench 3.0 → Terminal-Bench 2.1

Calibration · https://benchgap.net/calibration/1501 · data retrieved 2026-10-29

Terminal-Bench 2.1 is estimated from Terminal-Bench 3.0 with a linear curve fitted on 11 models measured on both: y = 0.3715·x + 0.7596, R² = 0.31, cross-validated error 6.6 pp. It is used for 0 estimates.

## Fitted on

| Model | Terminal-Bench 3.0 | Terminal-Bench 2.1 |
|---|---|---|
| [Claude Fable 5](https://benchgap.net/model/claude-fable.md) | 34.1% | 84.3% |
| [Claude Opus 4.8](https://benchgap.net/model/claude-opus-4-8.md) | 21.1% | 74.6% |
| [Claude Sonnet 5](https://benchgap.net/model/claude-sonnet-5.md) | 14.6% | 80.4% |
| [Gemini 3.7 Flash](https://benchgap.net/model/gemini-3-7-flash.md) | 14.9% | 85.8% |
| [GLM-5.2](https://benchgap.net/model/glm-5-2.md) | 4.6% | 81.0% |
| [GPT-5.6 Luna](https://benchgap.net/model/gpt-5-6-luna.md) | 14.3% | 84.7% |
| [GPT-5.6 Sol](https://benchgap.net/model/gpt-5-6-sol.md) | 34.6% | 91.9% |
| [GPT-5.6 Terra](https://benchgap.net/model/gpt-5-6-terra.md) | 20.8% | 87.4% |
| [Grok 4.5](https://benchgap.net/model/grok-4-5.md) | 15.7% | 83.3% |
| [Ornith-1.5-35B-A3B](https://benchgap.net/model/ornith-1-5-35b-a3b.md) | 5.1% | 67.8% |
| [Ornith-1.5-397B](https://benchgap.net/model/ornith-1-5-397b.md) | 13.5% | 86.1% |