Jev glossary
Answers & ConfidenceAbstention
Uncertainty
The honest "I'm not sure" signal that lets a system defer instead of guessing, exposed through probabilities and confidence.
- Category
- Answers & Confidence
- Also known as
- Abstention
- Reading time
- 1 min
- Related terms
- 5
- Directory entries
- 2
- Docs
- docs.typesafe.ai
- Added
- 2026-09-24
Definition
The confidence page opens with the principle: if an intelligent system cannot express honest uncertainty, the system cannot be trusted. Calibrated probabilities are how Jev expresses it, and the middle of a Noul's range is a natural hand-off to a person.
Uncertainty is meant to be designed with, not optimized away: low confidence often means the options are ambiguous or the state lacks information, and both are signals your code can route on.
Tagsconfidencedesign
Related terms
Definitions that connect to this one.
ConfidenceA 0-1 number on every Choice and Score answer that collapses the probability distribution into one certainty score.Answers & ConfidenceCalibrationThe property that outcomes given a probability of 0.2 occur about 20% of the time, measured across many predictions.Answers & ConfidenceUncertainty bandA middle range of probabilities, such as 0.30 to 0.70, that maps to an explicit uncertain outcome instead of a hard yes or no.Answers & ConfidenceHuman reviewThe explicit path for uncertain or high-stakes cases: route to a person instead of acting on a low-confidence answer.PatternsNoul probabilityThe single 0-1 value a Noul returns: the probability that the answer is yes, with no separate confidence field.Answers & Confidence
From the Jev directory
Directory entries that go deeper on this term.
How TypeSafe reports certainty, how it differs from probability, and how to use it architecturally to gate and route decisions.
Jev Practices & PatternsDocs#official#confidence#routing
Official
Why TypeSafe trains decision models with RLCD instead of RLHF: calibrated probabilities where 0.2 outcomes happen about 20% of the time, and the case for machine-to-machine automation.
Jev Guides & ArticlesDocs#official#docs#evaluation
Official
From the Jev AI model community
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