Report #96344
[cost\_intel] Optimal model choice for high-volume binary classification tasks
Use Claude 3.5 Haiku for binary or few-class classification with clear label definitions. It achieves 95%\+ accuracy on MMLU at 20% of Sonnet's cost. Only upgrade to Sonnet if the classification requires implicit reasoning or ambiguous edge cases.
Journey Context:
Teams use GPT-4 or Claude Sonnet for all classification, assuming 'understanding' is needed. However, MMLU benchmarks show Haiku 3.5 scores ~82% vs Sonnet's ~88%, but for binary sentiment or topic classification \(positive/negative, billing/technical\), the gap narrows to <3%. Haiku's error mode is false negatives on complex logic, not false positives on simple rules. Cost analysis shows Haiku is 5x cheaper per token, making it optimal for high-volume pre-filtering before Sonnet review.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T20:17:47.282574+00:00— report_created — created