Playgrounds
Interactive demos and sandboxes for Choice, Score, and Noul in the browser.
The Jev playground is TypeSafe's official browser sandbox for System One, in the TypeSafe console. Paste state, tune Choice, Score, and Noul questions, and sanity-check thresholds before you write code. Below it you will find community playgrounds: some run as hosted demos, others are repos with no hosted demo listed.
Who it is for: Builders who want to see Jev answers on real state before they spend on integration.
How to choose: Start with the official Playground. Pick a community demo only when it shows a pattern you need. Prefer listings with a hosted demo when you just want to click.
48 listings in this bucket · Learn Jev
Guide
Hosted demos or repos
Listings with a live demo link run in the browser, and repo-only listings have no hosted demo listed.
Highlights
Hand-picked listings with extra detail on this directory. Star counts and demos still live on each card.
- Playground
Official browser sandbox for System One: paste state, tune Choice, Score, and Noul questions against real state, inspect the vectors, and sanity-check thresholds before you embed calls. Hosted.
- jevplay
Custom Choice, Score, and Noul builder with live distributions. Hosted demo plus repo.
- typesafe-ai-playground (BunsDev)
Community TypeSafe AI playground with 110 use cases, games, dilemmas, and model challenges, plus editable prompts, A/B comparisons, and a mobile-friendly UI. Hosted demo plus repo.
- jev-playground (Little-Planet-Labs)
A small Next.js app for experimenting with TypeSafe AI's Jev model (System One). Hosted demo plus repo.
- TypeSafe Typewriter
Val Town demo where 16 typed judgments update live as you type. Hosted.
- Yes / No
Free, no-signup Noul demo: ask a question and get yes, no, or maybe, with web search when needed. Hosted.
- typesafe-ai-playground (markjaquith)
A playground for experiments around Jev, TypeSafe's System One model. Repo only, no hosted demo listed.
FAQ
- What is the Jev playground?
It is TypeSafe's official browser sandbox for Jev, listed here as Playground. Paste state, ask Choice, Score, or Noul questions, and inspect the probabilities before you wire Jev into code.
- Where can I try the Jev playground?
Open it in the TypeSafe console at console.typesafe.ai/playground. For community builds with hosted demos, start with jevplay or typesafe-ai-playground (BunsDev) below.
All listings
by @nerdytanay