# V* → CharXiv

Calibration · https://benchgap.net/calibration/1655 · data retrieved 2026-10-29

CharXiv is estimated from V* with a offset logistic curve fitted on 12 models measured on both: y = 0.0000 + (0.7995 − 0.0000) / (1 + exp(−160.93·(x − 0.6589))), R² = 0.82, cross-validated error 3.6 pp. It is used for 1 estimate.

| Estimated model | V* | CharXiv | Source |
|---|---|---|---|
| [Step 3.7 Flash](https://benchgap.net/model/step-3-7-flash.md) | 95.3% | 80.0% | estimated ± 3.6 pp, high confidence |

## Fitted on

| Model | V* | CharXiv |
|---|---|---|
| [Claude Opus 4.5](https://benchgap.net/model/claude-opus-4-5.md) | 67.0% | 68.5% |
| [Gemini 3 Pro](https://benchgap.net/model/gemini-3-pro.md) | 88.0% | 81.4% |
| [GPT-5.2](https://benchgap.net/model/gpt-5-2.md) | 75.9% | 82.1% |
| [Kimi K2.6](https://benchgap.net/model/kimi-2-6.md) | 96.9% | 80.4% |
| [Nemotron 3.5 Super VL 120B A12B](https://benchgap.net/model/nemotron-3-5-super-vl-120b-a12b.md) | 85.6% | 80.8% |
| [Nemotron 3.5 Super VL 120B A12B NVFP4](https://benchgap.net/model/nemotron-3-5-super-vl-120b-a12b-nvfp4.md) | 86.0% | 79.9% |
| [Qwen3.5-122B-A10B](https://benchgap.net/model/qwen3-5-122b-a10b.md) | 93.2% | 77.2% |
| [Qwen3.5-27B](https://benchgap.net/model/qwen3-5-27b.md) | 93.7% | 79.5% |
| [Qwen3.5-35B-A3B](https://benchgap.net/model/qwen3-5-35b-a3b.md) | 92.7% | 77.5% |
| [Qwen3.5 397B](https://benchgap.net/model/qwen3-5-397b.md) | 95.8% | 80.8% |
| [Qwen3.6-27B](https://benchgap.net/model/qwen3-6-27b.md) | 94.7% | 78.4% |
| [Qwen3.6 Plus](https://benchgap.net/model/qwen3-6-plus.md) | 96.9% | 81.5% |