Question 1

What is heyjev.ai?

Accepted Answer

A small, independent playground for Jev, TypeSafe AI’s System One model. Its first experiment, “Hey Jev, should I deploy?”, turns a plain-English description of a deploy into a humorous verdict backed by real probabilities. It is not an official TypeSafe product.

Question 2

How does “Hey Jev, should I deploy?” work?

Accepted Answer

Your text is sent to TypeSafe’s API together with 18 typed questions (yes/no, multiple choice and scored levels). Jev returns a probability for every possible answer in a single request, usually in a few hundred milliseconds, and generates no text. Code then adds up what each answer means for a risk score and maps it to a verdict such as SHIP IT, MAYBE MONDAY or GO TOUCH GRASS.

Question 3

Is it a real deployment gate?

Accepted Answer

No. It is entertainment and education. Do not use it to decide, approve, block or automate a real release, and do not build anything that depends on it: there is no SLA and it can change or disappear at any time. See the terms.

Question 4

Can I call it from my own tools or an AI agent?

Accepted Answer

Yes, for personal non-commercial use within the published limits: POST /api/ask with a scenario of up to 400 characters returns the verdict, the reasons, the raw probabilities, the latency and a share link. A skill file for coding agents is at /skill, and every response carries a notice that it is not advice.

Question 5

What is Jev?

Accepted Answer

Jev is TypeSafe AI’s System One model. Instead of writing text, it takes a state (text or JSON) and typed questions and returns calibrated probabilities for all of them at once, so software can branch on the numbers.

Hey Jev.

Hey Jev, ¿hago el deploy?

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Playground