# Vals LiveCodeBench → FrontierCode 1.1 Main

Calibration · https://benchgap.net/calibration/1578 · data retrieved 2026-10-29

FrontierCode 1.1 Main is estimated from Vals LiveCodeBench with a Hill curve fitted on 9 models measured on both: y = 0.0000 + (1.2000 − 0.0000)·x^6.00 / (0.95372^6.00 + x^6.00), R² = 0.66, cross-validated error 6.2 pp. It is used for 3 estimates.

| Estimated model | Vals LiveCodeBench | FrontierCode 1.1 Main | Source |
|---|---|---|---|
| [GPT-5.1-Codex](https://benchgap.net/model/gpt-5-1-codex.md) | 85.6% | 41.2% | estimated ± 6.2 pp, medium confidence |
| [GPT-5.1-Codex-Max](https://benchgap.net/model/gpt-5-1-codex-max.md) | 83.6% | 37.4% | estimated ± 6.2 pp, medium confidence |
| [GLM-4.6](https://benchgap.net/model/glm-4-6.md) | 81.0% | 32.7% | estimated ± 6.2 pp, low confidence |

## Fitted on

| Model | Vals LiveCodeBench | FrontierCode 1.1 Main |
|---|---|---|
| [Claude Fable 5](https://benchgap.net/model/claude-fable.md) | 89.8% | 53.5% |
| [Claude Opus 4.7](https://benchgap.net/model/claude-opus-4-7.md) | 85.1% | 38.5% |
| [Claude Opus 4.8](https://benchgap.net/model/claude-opus-4-8.md) | 87.8% | 46.5% |
| [Claude Opus 5](https://benchgap.net/model/claude-opus-5.md) | 89.0% | 53.4% |
| [Claude Sonnet 4.6](https://benchgap.net/model/claude-sonnet-4-6.md) | 82.1% | 24.3% |
| [Claude Sonnet 5](https://benchgap.net/model/claude-sonnet-5.md) | 82.4% | 42.7% |
| [Gemini 3.7 Flash](https://benchgap.net/model/gemini-3-7-flash.md) | 88.7% | 43.6% |
| [GPT-5.4 mini](https://benchgap.net/model/gpt-5-4-mini.md) | 81.5% | 27.0% |
| [GPT-5.5](https://benchgap.net/model/gpt-5-5.md) | 85.3% | 43.0% |