Jev. Decisions in milliseconds.

AI built for software. Give it context. Get a choice, a score, or a yes/no probability your code can use.

Built to act on

Typed answers. You define the options; Jev returns a decision, not a paragraph to parse.

Confidence included. Your code decides when to act and when to ask for review.

Fast, focused decisions for routing, classification, and automation. Not a chatbot or a guarantee of correctness.

Context in. Decision out.

A support message becomes a routing decision.

  1. Send context

    A message, a game state, or a market snapshot.

  2. Define the question

    Choose from options, assign a score, or ask yes/no.

  3. Act on the result

    Use the answer and its confidence in your code.

Illustrative values, not a live API response.

{
  "state": "I was charged twice. Please refund.",
  "questions": {
    "team": {
      "type": "choice",
      "criteria": {
        "billing": "Payments and refunds",
        "tech": "Bugs and outages"
      }
    }
  }
}
{
  "answers": {
    "team": {
      "choice": "billing",
      "probabilities": {
        "billing": 0.94,
        "tech": 0.06
      }
    }
  }
}

See a real decision

Edit a message. Ask Jev. Inspect the answers and confidence.

Three typed questions in one request. The answers come back as numbers.

Put it to work

Built with Jev

36 community projects. Explore the demos, code, and original posts.

Explore projects

Good to know

Can Jev be wrong?
Yes. Typed output constrains the format, not the correctness. Use confidence thresholds and human review for important decisions.
How fast is it?
TypeSafe reports 70–500 ms end-to-end in its launch benchmarks. Network, input size, and provider affect latency. Our demos show the measured round trip.
What does it cost?
TypeSafe lists $0.042 per million input tokens, with free output. These demos use our server, so you don't need an API key.