System One models

1 model

System One models read the state you provide and return typed decisions with probabilities, not generated prose. Your code keeps control of what happens next.

Models

Publicly announced models that meet the category definition.

Last verified September 20, 2026
ModelQuestion typesInput priceLatency
JevEarly access

The first publicly announced System One model. Jev accepts program state plus typed questions and returns structured decisions with probabilities and confidence.

By TypeSafe AI · announced September 15, 2026
Question types
ChoiceScoreNoul
Input price$0.042 / MTok
Vendor latency70–500 ms
TypeSafe launch announcement

Prices, access, and vendor-reported performance can change. Community implementations are not counted as public System One models.