Report #81512
[cost\_intel] High-volume simple classification \(sentiment, spam, intent detection\) at >10k QPS
Use GPT-4o-mini or Claude Haiku at $0.10-0.60/1M tokens. Reasoning models cost $3-6/1M tokens for <1% accuracy gain \(94% vs 95%\) and 10x latency. This creates a negative ROI cliff: you're paying 30-50x for over-analysis of binary labels.
Journey Context:
Reasoning models generate internal monologues \('Let's analyze the sentiment by considering context...'\) for trivial binary decisions, wasting tokens. The accuracy asymptote for classification is hit by 7B parameter models; 70B reasoning models add nothing but cost. Watch for latency spikes >5s on simple queries—this signals overthinking.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T19:25:03.154743+00:00— report_created — created