benchgap
Calibration

SWE-bench Verified → DeepSWE

DeepSWE is estimated from SWE-bench Verified with a Hill curve fitted on 9 models measured on both: y = 0.0000 + (1.1142 − 0.0000)·x^6.00 / (0.85573^6.00 + x^6.00), R² = 0.54, cross-validated error 12.7 pp. It is used for 33 estimates.

Estimated modelSWE-bench VerifiedDeepSWESource
Claude Mythos 595.5%73.4%estimated ± 12.7 pp, low confidence
Claude Opus 4.680.8%46.3%estimated ± 12.7 pp, low confidence
GPT-5.280.0%44.6%estimated ± 12.7 pp, low confidence
BTL-478.4%41.4%estimated ± 12.7 pp, low confidence
MiMo-V2-Pro78.0%40.6%estimated ± 12.7 pp, low confidence
Claude Sonnet 4.577.2%39.0%estimated ± 12.7 pp, low confidence
Kimi K2.5 (Reasoning)76.8%38.2%estimated ± 12.7 pp, low confidence
MiMo-V2-Omni74.8%34.4%estimated ± 12.7 pp, low confidence
Laguna M.174.6%34.0%estimated ± 12.7 pp, low confidence
Claude 4.1 Opus74.5%33.8%estimated ± 12.7 pp, low confidence
Step 3.5 Flash74.4%33.6%estimated ± 12.7 pp, low confidence
Flint74.2%33.2%estimated ± 12.7 pp, low confidence
MAI-Thinking-173.5%31.9%estimated ± 12.7 pp, low confidence
MiMo-V2-Flash73.4%31.7%estimated ± 12.7 pp, low confidence
Jais-3-MoVA-36B-A4B72.8%30.6%estimated ± 12.7 pp, low confidence
Claude 4 Sonnet72.7%30.4%estimated ± 12.7 pp, low confidence
MAI-Code-1.1-Flash72.6%30.3%estimated ± 12.7 pp, low confidence
Claude 4 Opus72.5%30.1%estimated ± 12.7 pp, low confidence
Jais-3-32B72.4%29.9%estimated ± 12.7 pp, low confidence
Qwen3.5-27B72.4%29.9%estimated ± 12.7 pp, low confidence
Laguna XS 2.170.9%27.2%estimated ± 12.7 pp, low confidence
Grok Code Fast 170.8%27.1%estimated ± 12.7 pp, low confidence
Solar Open 270.4%26.4%estimated ± 12.7 pp, low confidence
Jais-3-375B-A23B70.2%26.0%estimated ± 12.7 pp, low confidence
Jais-3-7B70.2%26.0%estimated ± 12.7 pp, low confidence
Laguna XS.269.9%25.5%estimated ± 12.7 pp, low confidence
Qwen3-Coder 480B-A35B69.6%25.0%estimated ± 12.7 pp, low confidence
Qwen3.5-35B-A3B69.2%24.3%estimated ± 12.7 pp, low confidence
LongCat-Flash-Lite-Sparse68.2%22.7%estimated ± 12.7 pp, low confidence
DeepSeek V3.166.0%19.4%estimated ± 12.7 pp, low confidence
Kimi K265.8%19.1%estimated ± 12.7 pp, low confidence
Spark-X2.6-4B62.8%15.1%estimated ± 12.7 pp, low confidence
Claude 3.7 Sonnet62.3%14.4%estimated ± 12.7 pp, low confidence

Fitted on

ModelSWE-bench VerifiedDeepSWE
Claude Opus 596.0%68.8%
DeepSeek V4 Flash 073179.0%54.4%
DeepSeek V4 Pro 081380.6%62.7%
Ember-192.2%75.2%
Ornith-1.5-35B-A3B79.0%22.0%
Ornith-1.5-397B86.0%56.0%
Beam 1.0 501B-A23B81.6%43.3%
Beam 1.0 501B-A23B FP880.2%43.0%
Beam 1.0 501B-A23B NVFP480.7%42.7%