# Vibe Code Bench → PostTrainBench v1.1

Calibration · https://benchgap.net/calibration/1605 · data retrieved 2026-10-29

PostTrainBench v1.1 is estimated from Vibe Code Bench with a Hill curve fitted on 5 models measured on both: y = 0.1985 + (1.2000 − 0.1985)·x^6.00 / (1.10324^6.00 + x^6.00), R² = 0.89, cross-validated error 10.5 pp. It is used for 19 estimates.

| Estimated model | Vibe Code Bench | PostTrainBench v1.1 | Source |
|---|---|---|---|
| [Claude Opus 4.6 (Adaptive)](https://benchgap.net/model/claude-opus-4-6-thinking.md) | 53.5% | 21.1% | estimated ± 10.5 pp, low confidence |
| [GPT-5.1](https://benchgap.net/model/gpt-5-1.md) | 24.6% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GLM-5 (Reasoning)](https://benchgap.net/model/glm-5-reasoning.md) | 23.4% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Claude Sonnet 4.5 Thinking](https://benchgap.net/model/claude-sonnet-4-5-thinking.md) | 22.6% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GPT-5.1-Codex-Max](https://benchgap.net/model/gpt-5-1-codex-max.md) | 22.2% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Claude Opus 4.5 Thinking](https://benchgap.net/model/claude-opus-4-5-thinking.md) | 20.6% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GPT-5 (high)](https://benchgap.net/model/gpt-5-high.md) | 20.1% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Kimi K2.5 (Reasoning)](https://benchgap.net/model/kimi-k2-5-reasoning.md) | 17.5% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Qwen3.5 Plus](https://benchgap.net/model/qwen3-5-plus.md) | 15.7% | 19.9% | estimated ± 10.5 pp, low confidence |
| [MiniMax M2.5](https://benchgap.net/model/minimax-m2-5.md) | 14.9% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Gemini 3 Pro](https://benchgap.net/model/gemini-3-pro.md) | 14.3% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GPT-5 mini](https://benchgap.net/model/gpt-5-mini.md) | 14.2% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GPT-5.1-Codex](https://benchgap.net/model/gpt-5-1-codex.md) | 13.1% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Claude Haiku 4.5 Thinking](https://benchgap.net/model/claude-haiku-4-5-thinking.md) | 11.4% | 19.9% | estimated ± 10.5 pp, low confidence |
| [DeepSeek V3.2 (Thinking)](https://benchgap.net/model/deepseek-v3-2-thinking.md) | 5.1% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Qwen3 Max](https://benchgap.net/model/qwen3-max.md) | 3.5% | 19.9% | estimated ± 10.5 pp, low confidence |
| [GLM-4.6](https://benchgap.net/model/glm-4-6.md) | 3.1% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Grok 4.1 Fast (Reasoning)](https://benchgap.net/model/grok-4-1-fast-reasoning.md) | 1.2% | 19.9% | estimated ± 10.5 pp, low confidence |
| [Grok 4 Fast (Reasoning)](https://benchgap.net/model/grok-4-fast-reasoning.md) | 0.0% | 19.9% | estimated ± 10.5 pp, low confidence |

## Fitted on

| Model | Vibe Code Bench | PostTrainBench v1.1 |
|---|---|---|
| [Claude Opus 4.7](https://benchgap.net/model/claude-opus-4-7.md) | 71.0% | 28.6% |
| [Gemini 3.1 Pro](https://benchgap.net/model/gemini-3-1-pro.md) | 32.0% | 22.0% |
| [Gemini 4 Argon](https://benchgap.net/model/gemini-4-argon.md) | 91.9% | 45.3% |
| [GPT-5.4](https://benchgap.net/model/gpt-5-4.md) | 67.4% | 19.0% |
| [GPT-5.5](https://benchgap.net/model/gpt-5-5.md) | 69.8% | 27.2% |