CHOOSEBusiness workflows
Jev AI Model
Ivan Khokhlov@ivantinkers
Jev is an AI model that takes 'state' and typed questions to return typed decisions with calibrated confidence, excelling at classification tasks.
Pattern↑ Jev AI decision models
I see quite a few people are asking the question "What is Jev?". Here is an answer with an example. Hope this helps.
Jev is a new kind of AI model from TypeSafe AI (San Francisco; founder Diogo Almeida, ex-OpenAI), launched September 15, 2026.
It does not generate text — it takes "state" plus typed questions and returns typed decisions (a choice, a score, or a yes/no probability) with calibrated confidence, in 70–500 milliseconds, at $0.042 per million input tokens with output free.
It is very good at classifying.
Here is an example.
You send a query:
{
"model": "jev-latest",
"state": "The invoice I received shows €480 but my contract says €380. Can someone check?",
"questions": {
"route_to": {
"type": "choice",
"instructions": "Which team should handle this ticket?",
"options": ["billing", "technical_support", "sales", "account_management"]
}
}
}
You get this answer:
{
"route_to": {
"type": "choice",
"choice": "billing",
"probabilities": {
"billing": 0.94,
"account_management": 0.04,
"sales": 0.01,
"technical_support": 0.01
},
"confidence": 0.94
}
}