STATE + QUESTIONS
Typed request
Represent the task in a structured request with stable names and criteria.
System One Models
Open models for small, repeated decisions
Decision Models provides one API for typed decisions from open-weight models, with Peer-to-Peer and optional EU processing tiers.
Instead of generating a paragraph, a decision request provides context and up to three named text questions with s1-pro, or one with s1-fast and s1-vision. A response can identify a choice, a yes/no probability or a score distribution.
ANSWER + DISTRIBUTION
Inspectable result
Return the selected answer and probability information supported by the model.
PEER-TO-PEER OR EU
Tier-aware route
Set an allowed processing tier per API key or request.
Text API for customer accounts
Sign in with Google, create an API key and send text decisions right away; free allowance is available by invitation. Top up from EUR 1. Private individuals and businesses worldwide can sign up and top up. Taxes are shown in checkout before you pay. Image decisions use s1-vision (one image per request). See the API documentation for the current model and route contract.
Decision Models does not resell TypeSafe’s Jev. Jev is a trademark of TypeSafe AI; Decision Models is not affiliated with TypeSafe.