AI article
Coinbase's 9B Fraud Model Beat Opus 4.5: Copy the Pattern With a Verifiable Reward, Tier-Only Output, and Block-Only Harness
Community description: Attributed compile + one small offline run on synthetic data Primary sources (Coinbase Engineering,...
Dev.to | Oct 14, 2026 | Yong Yu
Automated excerpt
Dollar-weighted recall asks what share of the fraud value you caught. Coinbase's benchmark alone had 813 confirmed fraud cases. Score every candidate on precision, recall, F1, dollar-weighted recall and legit-dollars-blocked.
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