# Terminal-Bench 4.0 → AA Terminal-Bench 4.0

Calibration · https://benchgap.net/calibration/1503 · data retrieved 2026-10-29

AA Terminal-Bench 4.0 is estimated from Terminal-Bench 4.0 with a Hill curve fitted on 12 models measured on both: y = 0.2185 + (0.6834 − 0.2185)·x^6.00 / (0.47052^6.00 + x^6.00), R² = 0.92, cross-validated error 6.0 pp. It is used for 8 estimates.

| Estimated model | Terminal-Bench 4.0 | AA Terminal-Bench 4.0 | Source |
|---|---|---|---|
| [Claude Mythos 5.1](https://benchgap.net/model/claude-mythos-5-1.md) | 60.9% | 60.2% | estimated ± 6.0 pp, medium confidence |
| [Gemini 4 Argon](https://benchgap.net/model/gemini-4-argon.md) | 57.4% | 57.5% | estimated ± 6.0 pp, medium confidence |
| [Pareto 26.9](https://benchgap.net/model/pareto-26-9.md) | 51.0% | 50.6% | estimated ± 6.0 pp, medium confidence |
| [Pareto 26.10 Preview](https://benchgap.net/model/pareto-26-10-preview.md) | 50.8% | 50.3% | estimated ± 6.0 pp, medium confidence |
| [Ling 3.1 Flash](https://benchgap.net/model/ling-3-1-flash.md) | 46.0% | 43.6% | estimated ± 6.0 pp, medium confidence |
| [DeepSeek V4.1 Flash 1017](https://benchgap.net/model/deepseek-v4-1-flash.md) | 42.3% | 37.9% | estimated ± 6.0 pp, medium confidence |
| [MiMo-V2.6-Flash](https://benchgap.net/model/mimo-v2-6-flash.md) | 28.8% | 24.2% | estimated ± 6.0 pp, medium confidence |
| [SWE-2](https://benchgap.net/model/swe-2.md) | 27.3% | 23.6% | estimated ± 6.0 pp, medium confidence |

## Fitted on

| Model | Terminal-Bench 4.0 | AA Terminal-Bench 4.0 |
|---|---|---|
| [Claude Fable 5.1](https://benchgap.net/model/claude-fable-5-1.md) | 55.8% | 52.0% |
| [Claude Haiku 5.5](https://benchgap.net/model/claude-haiku-5-5.md) | 39.2% | 32.8% |
| [Claude Opus 5.5](https://benchgap.net/model/claude-opus-5-5.md) | 66.4% | 59.6% |
| [Claude Sonnet 5.5](https://benchgap.net/model/claude-sonnet-5-5.md) | 70.6% | 63.6% |
| [Gemini 3.8 Flash](https://benchgap.net/model/gemini-3-8-flash.md) | 19.1% | 19.7% |
| [GPT-6.1 Terra](https://benchgap.net/model/gpt-6-1-terra.md) | 50.3% | 55.6% |
| [GPT-6 Astra](https://benchgap.net/model/gpt-6-astra.md) | 57.9% | 59.1% |
| [Grok 4.7](https://benchgap.net/model/grok-4-7.md) | 38.0% | 25.8% |
| [Kimi K3.1 Pro](https://benchgap.net/model/kimi-3-1-pro.md) | 65.7% | 67.2% |
| [MiMo-V2.6-Pro](https://benchgap.net/model/mimo-v2-6-pro.md) | 34.9% | 34.8% |
| [MiniMax M3.1 Flash](https://benchgap.net/model/minimax-m3-1-flash.md) | 38.1% | 25.8% |
| [Step 5 Preview](https://benchgap.net/model/step-5-preview.md) | 33.3% | 33.3% |