Calibration
SWE-bench Verified → Vals SWE-bench
Vals SWE-bench is estimated from SWE-bench Verified with a linear curve fitted on 24 models measured on both: y = 1.3755·x + -0.3368, R² = 0.69, cross-validated error 6.8 pp. It is used for 24 estimates.
| Estimated model | SWE-bench Verified | Vals SWE-bench | Source |
|---|---|---|---|
| BTL-4 | 78.4% | 74.2% | estimated ± 6.8 pp, medium confidence |
| Claude 3.5 Sonnet | 49.0% | 33.7% | estimated ± 6.8 pp, low confidence |
| Claude 4.1 Opus | 74.5% | 68.8% | estimated ± 6.8 pp, medium confidence |
| Claude 4 Sonnet | 72.7% | 66.3% | estimated ± 6.8 pp, medium confidence |
| Claude Mythos 5 | 95.5% | 97.7% | estimated ± 6.8 pp, medium confidence |
| Claude Sonnet 4.5 | 77.2% | 72.5% | estimated ± 6.8 pp, medium confidence |
| Ember-1 | 92.2% | 93.1% | estimated ± 6.8 pp, medium confidence |
| GPT-4.1 | 54.6% | 41.4% | estimated ± 6.8 pp, low confidence |
| Grok Code Fast 1 | 70.8% | 63.7% | estimated ± 6.8 pp, medium confidence |
| Laguna XS 2.1 | 70.9% | 63.8% | estimated ± 6.8 pp, medium confidence |
| LLaDA2.2-flash | 49.3% | 34.1% | estimated ± 6.8 pp, low confidence |
| LongCat-Flash-Lite-Sparse | 68.2% | 60.1% | estimated ± 6.8 pp, medium confidence |
| MAI-Code-1.1-Flash | 72.6% | 66.2% | estimated ± 6.8 pp, medium confidence |
| MAI-Thinking-1 | 73.5% | 67.4% | estimated ± 6.8 pp, medium confidence |
| MiMo-V2-Omni | 74.8% | 69.2% | estimated ± 6.8 pp, medium confidence |
| MiMo-V2-Pro | 78.0% | 73.6% | estimated ± 6.8 pp, medium confidence |
| o3-mini | 49.3% | 34.1% | estimated ± 6.8 pp, low confidence |
| Qwen3.5-27B | 72.4% | 65.9% | estimated ± 6.8 pp, medium confidence |
| Qwen3.5-35B-A3B | 69.2% | 61.5% | estimated ± 6.8 pp, medium confidence |
| Qwen3.5 397B | 76.2% | 71.1% | estimated ± 6.8 pp, medium confidence |
| Solar Open 2 | 70.4% | 63.2% | estimated ± 6.8 pp, medium confidence |
| Solar Pro 4 | 70.6% | 63.4% | estimated ± 6.8 pp, medium confidence |
| Ternary Bonsai 2 27B | 60.8% | 50.0% | estimated ± 6.8 pp, low confidence |
| ZAYA1-74B-Preview | 53.2% | 39.5% | estimated ± 6.8 pp, low confidence |