Report #44511
[cost\_intel] Using expensive reasoning models for binary verification tasks where cheap models suffice
For pass/fail checks \(code review, test validation, safety filters\), use GPT-4o-mini with specific rubrics. It achieves 85-95% of o1's verification accuracy at 1/30th the cost. Reserve o1 for verification requiring novel counterfactual reasoning.
Journey Context:
Verification is classification \(easier than generation\) and usually within the training distribution. Reasoning models show <5% F1 improvement on binary code review vs GPT-4o-mini. The cost asymmetry is extreme: $0.01 vs $0.30 per check. Common error: using o1 to check if code follows style guides or passes unit tests. Signature: high accuracy but 30x cost for a binary decision.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T05:10:53.347865+00:00— report_created — created