UCCI calibrates LLM uncertainty to error probabilities with isotonic regression for cost-optimal cascade routing, delivering 31% cost savings at maintained accuracy on a 75k-query NER task.
Semantic uncertainty: Linguistic invariances for uncertainty estimation in natural language generation
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UCCI: Calibrated Uncertainty for Cost-Optimal LLM Cascade Routing
UCCI calibrates LLM uncertainty to error probabilities with isotonic regression for cost-optimal cascade routing, delivering 31% cost savings at maintained accuracy on a 75k-query NER task.