Sign up for Jev

Signing up for Jev takes about a minute: create an account, generate a jv_live_ key, and make your first typed decision. You can try it free in the browser before you sign up at all.

Jev is TypeSafe AI's first System One model — a call returns one of your options, calibrated probabilities, and a confidence score in roughly 70–500ms for about $0.001. Sign-up is self-serve: no sales call, no waitlist, no approval step.

How to sign up

• Try it free first: run a decision in the browser playground, no account needed
• Create your account on the get-access page
• Generate a jv_live_ key in the dashboard
• Make your first call to /api/v1/decide

What you get

Your key works against the hosted endpoint POST https://jevtypesafeai.com/api/v1/decide (official upstream POST https://api.typesafe.ai/v1/systemone). Billing is per input token — $0.42 per million, output free — so a typical decision lands around $0.001. Usage and receipts are self-serve in the dashboard.

Pricing at a glance

There is a free browser playground to evaluate Jev before you commit, then pay-as-you-go once you have a key. See the pricing page for current tiers, and the dashboard for your usage history and invoices.

See also: Get access · Pricing · API keys