Calibration
AA Coding Index → CursorBench 3.1
CursorBench 3.1 is estimated from AA Coding Index with a offset logistic curve fitted on 5 models measured on both: y = 0.4791 + (1.2000 − 0.4791) / (1 + exp(−47.94·(x − 0.7815))), R² = 0.99, cross-validated error 4.8 pp. It is used for 24 estimates.
| Estimated model | AA Coding Index | CursorBench 3.1 | Source |
|---|---|---|---|
| Claude 3 Opus | 19.5% | 47.9% | estimated ± 4.8 pp, low confidence |
| Claude Opus 4.7 (Adaptive) | 73.6% | 55.2% | estimated ± 4.8 pp, medium confidence |
| Gemini 1.5 Pro | 23.6% | 47.9% | estimated ± 4.8 pp, low confidence |
| Gemma 4 12B | 31.0% | 47.9% | estimated ± 4.8 pp, low confidence |
| Gemma 4 E2B | 7.2% | 47.9% | estimated ± 4.8 pp, low confidence |
| GLM-4.7 | 45.3% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-4.1 mini | 20.2% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-4.1 nano | 11.1% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-4 Turbo | 21.5% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-4o mini | 11.4% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-5.1 | 49.4% | 47.9% | estimated ± 4.8 pp, low confidence |
| GPT-5.4 | 71.1% | 50.2% | estimated ± 4.8 pp, medium confidence |
| GPT-5 (high) | 37.8% | 47.9% | estimated ± 4.8 pp, low confidence |
| K-Exaone | 32.1% | 47.9% | estimated ± 4.8 pp, low confidence |
| Kimi K2.5 | 46.8% | 47.9% | estimated ± 4.8 pp, low confidence |
| Kimi K2.5 (Reasoning) | 46.8% | 47.9% | estimated ± 4.8 pp, low confidence |
| Ling 2.6 Flash | 25.3% | 47.9% | estimated ± 4.8 pp, low confidence |
| MiMo-V2-Flash | 49.8% | 47.9% | estimated ± 4.8 pp, low confidence |
| Muse Spark | 58.6% | 47.9% | estimated ± 4.8 pp, low confidence |
| Nemotron 3 Nano Omni 30B A3B | 13.8% | 47.9% | estimated ± 4.8 pp, low confidence |
| o1 | 39.7% | 47.9% | estimated ± 4.8 pp, low confidence |
| o1-preview | 34.1% | 47.9% | estimated ± 4.8 pp, low confidence |
| Qwen3.6 Plus | 54.5% | 47.9% | estimated ± 4.8 pp, low confidence |
| Ultravox v0.6 Llama 3.3 70B | 11.9% | 47.9% | estimated ± 4.8 pp, low confidence |