ArticleInsights14 min
Faultline: Four Days on Kaggle, Nine Months to Make a Verifier Tell the Truth
Faultline started as a four-day Kaggle entry with zero tests. Faultline Pro now has 4,887 counted tests. These are the failures that put them there.
AIAI verificationdeveloper tools
Asif Waliuddin
Sep 30, 2026