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Primitives

Null criteria

Passing null as a Choice option description when the option name needs no extra explanation.

Category
Primitives
Also known as
—
Related terms
4
Directory entries
2
Docs
docs.typesafe.ai
Added
2026-09-24

Definition

Choice criteria values accept null, which tells the model the option name is self-explanatory. It keeps short, unambiguous option sets from filling the request with redundant descriptions.

The rest of the criteria map still carries whatever contrast the options need; null is a signal to spend description budget only where options could be confused.

Tagsprimitivesapi

From the directory

Pick one option from a set you define. Returns the option, the full probability distribution, and 0-1 confidence, with up to 255 options and parallel questions that barely add latency.
Practices & PatternsDocs#official#primitives#choice
Official
Instructions, option descriptions, score levels, and noul criteria all accept JSON, so you can label question parts, pass schemas and taxonomies, and keep candidate paths alive.
Practices & PatternsDocs#official#primitives#architecture
Official

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