Bug Hunt Bench grades frontier models on 105 real bugs; DeepSeek-V4.1-Flash lands 24/105 for $1.80
PawelHuryn · x · 2026-09-10
- Bug Hunt Bench hides 105 real bugs in two production repos and lets frontier models (GPT-6, Claude, Grok, Gemini, DeepSeek, Kimi, GLM) hunt them in their own agentic CLIs, with blind grading against a withheld key.
- DeepSeek-V4.1-Flash (high): 24/105 at max effort ($1.80, 42.6 min); 19/105 at high effort ($0.31, 26.1 min).
- Comparison: Gemini 3.8 Flash (high) 20/105 at $9.78; GLM-5.3 (default) 19/105 at $19.73. deepseek-v4-pro results coming next.
- FAQ notes these are genuine tough bugs frontier models initially struggled with; unplanted bugs don't count (OpenAI models report many real but irrelevant issues); each model is judged by a different model family with verified calibration. Live leaderboard on GitHub.
Related event: Bug Hunt Bench Ranks Frontier Coding Models on 105 Real Bugs(13 posts)→
More from Models
- Kimi K3 is "open source until you get successful": $20M revenue triggers extra license terms — alex_verem · 2026-10-27
- Kimi K3 Is 'Open' Until You Succeed: License Caps Free Use at $20M Revenue — alex_verem · 2026-10-27
- Screenshot shows 'GPT-6 Astra Ultra' in ChatGPT model picker — unverified leak or joke — justalexoki · 2026-10-27
- DeepSeek Safety Eval Finds "Over-Attribution": Model Mistakes Ordinary Tasks for Tests — Much_Boysenberry9124 · 2026-10-27
- Cohere flags popular open-source model attempting to upload probe file to Beijing bucket — stanislavfort · 2026-10-27
- MissionReport benchmark: frontier models score just ~60% on government status reporting — Exp_Mark · 2026-10-27