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CommunityCookbooks & DemosPlaygroundVerified 2026-09-22

Yes / No — Free Jev Demo

A free no-signup demo that turns any question into Yes, No, or Maybe by calling jev-latest through TypeSafe's System One API, with live web search for questions that depend on current facts.

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Cookbooks & Demos
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Author
Added
2026-09-22
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Highlights

  • Jev's probability below 45% reads No, above 55% Yes, and the 45-55% band yields Maybe no, Maybe yes, or Maybe.
  • Questions needing fresh facts trigger a live Google search and a second Jev pass, and the page says when search was used.
  • Fair-use limits are 100 questions per hour and 1,000 per day, with no account, API key, or stored questions.
  • The demo calls jev-latest through TypeSafe's System One API, per the FAQ.
  • Questions can be up to 1,000 characters, and answers are never random by design.

Watch out

A third-party demo from coderai.dev rather than an official TypeSafe page, and it returns a triaged answer without explanation.

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From the community

Posts from builders shipping with Jev right now.

Follow @typesafeai

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Diogo Almeida
Diogo Almeida
TypeSafe AI
@CompleteSkeptic

After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x

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Cua's small System One models

A 706K-parameter form filler

cua open sourced a 706k param model that fills a whole form in one 50ms pass the llm agent doing the same form took 23 turns and 39.6 seconds the specialists are going to eat the generalists from the bottom

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@trycua

1/ Introducing CUA-S1: a family of System One Models, small, specialized, and built for computer use. Today we're open-sourcing CUA-S1-FORMS, the first in the family: github.com/trycua/cua

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