Jev Latest via the Tokenator API

What the model is for

Jev is a structured decision model from TypeSafe, and the first of its System One models. System One models make fast, structured decisions for software, returning a typed choice rather than free-form text. It is suited for routing, classification, and other decision points inside an application where a fast, predictable answer matters more than generated prose. Learn more in TypeSafe's docs: https://docs.typesafe.ai/concepts/system-one

Specification

Full nameJev Latest
API IDjev-latest
Model vendorTypeSafe
TypeDecisions (probabilities for typed questions)
Context window32K tokens
Tokenator usage multiplier1.1×
Input modalitiestext
Supported API formats/v1/decisions
Upstream providers1
Current statusavailable
Data updated2026-10-08

Upstream providers

ProviderMultiplier
Unified LLM API1.1×

A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.

Example request

curl
curl https://api.tokenator.top/v1/decisions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "jev-latest",
    "state": "My checkout page shows a blank screen after I click Pay. I have tried two browsers.",
    "questions": {
      "is_bug": {
        "type": "noul",
        "instructions": "Is the customer reporting a software defect?",
        "criteria": {
          "true": "The customer describes broken or unexpected product behavior.",
          "false": "The customer is asking a question or requesting a feature."
        }
      },
      "team": {
        "type": "choice",
        "instructions": "Which team should own this ticket?",
        "criteria": {
          "account": "Login, permissions, or profile issues.",
          "frontend": "Rendering, layout, or browser compatibility issues.",
          "payments": "Checkout, billing, or payment processing issues."
        }
      },
      "urgency": {
        "type": "score",
        "instructions": "How urgent is this ticket?",
        "criteria": [
          "Can wait for the next release",
          "Should be fixed this week",
          "Blocking revenue right now"
        ]
      }
    }
  }'

FAQ about Jev Latest

What is the API ID of Jev Latest?

jev-latest — put this into the model field of your request.

What context window does Jev Latest have?

32K tokens.

How many tokens will a request cost?

input × 1.1× — the answer with its probabilities is not billed, you pay for the input only: the state and the questions. See the documentation for details.

How do I call this model?

Through /v1/decisions only: the chat endpoints refuse such a model. Question types, the answer shape and examples are in the decisions documentation.