TypesafeAI provider

TypeSafe AI's Jev decision model, now on TokenRex

Jev Latest turns text into typed decisions instead of free-form chat replies. Describe the questions you need answered — a choice, a yes/no, or a score — and Jev returns each answer with probabilities your code can trust. It is billed on input tokens only.

Models available
1
Model families
1
Types
1
Diogo Almeida, founder of TypeSafe AI
Diogo Almeida, founder of TypeSafe AI. TypeSafe AI

TypeSafe AI flagship models

The TypeSafe AI models most people start with. Prices are live and update automatically.

TypesafeTyped decisions

Jev Latest

Turn structured context into typed decisions, scores, and probabilities for classification and routing.

$0.0421 in / 1M

jev-latest
View model details

What you can do with TypeSafe AI on TokenRex

Choice questions

Pick one label from your own list, such as refund, shipping, technical or other.

Yes / no questions

Flag urgency, spam, policy issues or anything else with a true/false answer.

Scores

Rate severity, quality or priority on a scale you define.

Probabilities included

Each answer comes with probabilities, so you can set your own confidence thresholds.

Input-only billing

You pay for the text you send. There is no output token charge.

Built for routing

Send tickets, messages or leads to the right queue, team or model automatically.

Popular ways people use it

  • Routing support tickets to the right team
  • Moderating comments and user content
  • Scoring leads and sales emails
  • Choosing which model or workflow should handle a request
  • Tagging feedback and reviews
  • Detecting urgent or high-risk messages

How it works

TokenRex sits between your app and TypeSafe AI. You send a normal API request with your TokenRex key; we check the key and your balance, pass the request to TypeSafe AI, stream the answer back, and bill the exact usage TypeSafe AI reports.

  1. Your app

    SDK, agent or BYOK tool

  2. TokenRex

    Checks key and balance

  3. TypeSafe AI

    Runs the TypeSafe AI model

  4. Answer + bill

    Streamed back, billed per use

  1. 1

    Create a free account

    Sign up with email or Google. New accounts can claim free starter credit.

  2. 2

    Create an API key

    Open API keys in your dashboard and create a key. Keep it private.

  3. 3

    Point your app at TokenRex

    Set the base URL to https://tokenrex.ai/api/public in your SDK or BYOK app and paste your key.

  4. 4

    Choose a model ID

    Copy the exact model ID from the list on this page, for example from a flagship card.

  5. 5

    Pay only for what you use

    Each request is billed at the live model price and deducted from your prepaid wallet.

cURL · Decisions API

Terminal commands
curl https://tokenrex.ai/api/public/decisions \
  -H "Authorization: Bearer YOUR_TOKENREX_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "jev-latest",
    "state": "Customer says: my order never arrived and I want a refund.",
    "questions": {
      "category": {
        "type": "choice",
        "instructions": "Classify the support ticket.",
        "criteria": { "refund": "Wants money back", "shipping": "Delivery problem", "other": "Anything else" }
      }
    }
  }'

Endpoints for TypeSafe AI models

  • POST /v1/decisionsTyped decisions with probabilities

All TypeSafe AI models on TokenRex

1 models in 1 families. Open a model to see every version, cache rates and limits.

Compare models

Typed decisions

Price

Pricing and billing

Prepaid wallet

Top up once and every request is deducted from your balance. No subscription and no monthly minimum.

Cache-aware billing

If TypeSafe AI reports cached input tokens, they are billed at the model's lower cache-read rate.

Fast versions

Where offered, Fast versions answer about 2x faster at 2x the price.

TypeSafe AI on TokenRex — common questions

How is Jev different from a chat model?

A chat model writes free text. Jev answers the exact questions you define and returns typed values with probabilities, which is easier and safer to use in code.

How is Jev billed?

On input tokens only, at the live price shown on the Jev Latest model page. There is no output charge.

Can I ask several questions at once?

Yes. Put multiple named questions in one request — for example a category, an urgency flag and a severity score.

Other AI providers on TokenRex

TypeSafe AI and its logo are trademarks of their owner and are shown only to identify the models available. TokenRex is an independent service by Asirex Labs and is not affiliated with or endorsed by TypeSafe AI.