AI Glossary
Confidence Score
What is Confidence Score?
A numerical value assigned by an AI model to indicate how certain it is in a particular prediction or classification. Confidence scores are commonly used in classification models and structured AI outputs. Standard LLMs do not natively expose calibrated confidence scores for generated text, which is why hallucination detection remains challenging.
Example in practice
A fraud detection model that outputs a 0.94 confidence score when flagging a transaction allows risk teams to set thresholds — auto-blocking at 0.95+, queuing for review at 0.7–0.95, and passing below 0.7.
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