What qualifies for the Demos & playgrounds category?
Projects include starter examples, interactive sandboxes, minimal reproductions, notebooks, and focused demonstrations of Jev primitives or integration patterns.
Explore an awesome collection of 67 verified open-source Demos & playgrounds Jev projects on bestjev. Compare GitHub stars, languages, repositories, and implementations.
Left-pad strings with TypeSafe AI's Jev. For reasons.
Use Jev to make art!.
An unofficial local visualizer for Jev (TypeSafe): a live view of every call your code makes. Not affiliated with TypeSafe AI.
Jev Explained.
Random Jev-compatible baseline that emits Noul, Choice, and Score probabilities for mocks, lower-bound comparisons, and router evaluation.
Is it even? Ask Jev.
Jev shadcn-block generator.
Describe your startup idea. Jev decides: kill it, fix it or ship it.
Community playground with editable Jev use cases, games, dilemmas, challenges, and A/B comparisons.
Jev checks configurable Pi agent rules for risk, output redaction, repeated failures, and missing verification at selected workflow stages.
Six live, side-by-side demos of TypeSafe's Jev — a "System One" model that returns typed, probabilistic decisions (70–500 ms, $0.042 per 1M input tokens, output free) instead of generated text.
if you're experimenting with jev it will be easier from here.
Community TypeSafe AI playground: 110 use cases, games, dilemmas and model challenges, with editable prompts, A/B comparisons and a mobile-friendly UI.
Discord bot demo that lets users converse with Jev-backed typed behavior.
Split-screen demo where Jev detects Pix-payment scams and traces the fraud chain.
Jev-inspired travel decision tutorial with classifier training; the browser demo uses recorded model outputs.
A grill-me style interrogation of your idea, with Jev doing the grilling.
Fifty runnable visual demos comparing Jev typed decisions with an OpenAI structured-output baseline, with fixtures and explicit methodology limits.
Instinct: describe a case in free text and Jev picks the UI from a fixed catalog without generating a line of code or copy.
Browser playground for editable Jev Choice, Score, and Noul questions through TypeSafe, OpenRouter, or Vercel AI Gateway providers.
Open clients, evaluation tools, and runnable text/image/video decision demos for the hosted System One-compatible Trio-Spark service; model weights and training code are closed.
This demo uses Jev from TypeSafe AI to autonomously fly a drone in a random city from point A to point B, avoiding obstacles along the way. A trip costs $0.01.
Community TypeSafe AI playground: 110 use cases, games, dilemmas and model challenges, with editable prompts, A/B comparisons and a mobile-friendly UI.
Multi-axis writing quality checker powered by TypeSafe AI's Jev model. Separate named checks, each with its own verdict and confidence.
A polished OpenAI + TypeSafe Jev terminal interface for answers with transparent decision reports.
Live verdict page: feeds Jev the day’s Florida Man, odd-news, politics and world headlines and asks all three primitives whether AI should kill us all, refreshed every ten minutes.
A playground for TypeSafeAI's Jev Model.
A small Next.js app for experimenting with TypeSafe AI's Jev model (System One).
A playground for experiments around Jev, TypeSafe's System One model.
Agent tool/MCP call gate — allow / ask_human / deny via TypeSafe Jev.
Comment-moderation playground: paste a comment, Jev decides what to do with it.
Jev (TypeSafe AI) PoC through Game of Thrones.
Ten runnable agent-decision examples covering memory, retries, context selection, and handoffs, with offline fixtures and optional live Jev calls.
Compare GPT generated language with JEV structured Noul decisions on the same input.
JEV picks which stream idea becomes the live MVP. TypeSafe System One decision board.
A compiler for human language. Paste text, get diagnostics. Measured by TypeSafe Jev.
Demos to test the effectiveness of TypeSafe's "Jev" System One Model.
Typesafe/Jev public X demo.
Typesafe/Jev public X demo.
Typesafe/Jev public X demo.
Twelve members. Zero qualifications. A playful TypeSafe AI council with animated votes, inspectable decisions, and shareable verdicts.
TypeSafe の Jev を TypeScript SDK で使ってみる最初の 1 歩.
Feedback on your paper in seconds.
Probably: live BTC, ETH, and XRP prices with a shared TypeSafe buy-or-wait demonstration. No trades placed.
Small browser experiment for TypeSafe Jev decisions.
Design experiment where Jev picks a design in about a second and Luna writes only the words.
3D Magic 8 Ball on Convex where Jev scores twenty classic answers and the app displays their probabilities.
同じ発言を jev と LLM の両方に判定させ、感情の変動値のズレと応答速度を1画面で見比べるデモ(affectus + Vercel AI Gateway).
Jev Gamecast: replay-first React app that asks Jev typed questions about live sports data.
CartShield — SMB checkout fraud disposition via TypeSafe Jev.
Judge agent steps — ok / retry / escalate / stop via TypeSafe Jev.
HireSignal — resume first-pass fit+interview via TypeSafe Jev.
TypeSafe Jev playground — custom Choice/Score/Noul builder with live distributions.
LaneBreak — support ticket priority+routing via TypeSafe Jev.
Match user goals to MCP catalog (two-stage) via TypeSafe Jev.
PulseLane — clinic triage decisions via TypeSafe Jev.
Agent budget brake — continue / downgrade_model / stop via TypeSafe Jev.
Route tasks to research/code/browser/support/writer agents via TypeSafe Jev.
TrustGate — indie media T&S gate via TypeSafe Jev.
Bilingual Jev tracker and interactive playground whose templates submit typed Choice, Score, and Noul questions through a Cloudflare proxy and display structured results. No repository-level license file was found during review.
A probabilistic calculator where Jev emits one answer character at a time from 13 fixed choices and the UI displays every step’s probability distribution.
Worked ticket-triage and reranking examples for Jev, runnable through OpenRouter with sample data and a Makefile.
A test project based on Jev AI, the goal is to build a search function for a blog/article website that has 100s of articles to search from, So the user can actually use the search as chat to question anything and find related answers/articles.
Interactive explorer and Jev question workspace for Jev Board datasets.
Job Risk Analyzer: CLI and REST API that uses Jev to score an occupation's exposure to AI-driven layoffs and its resilience.
Diffusion-style pixel art out of a classifier: 256 parallel per-pixel Jev questions plus refinement passes.
Can a System One model steer music? Jev picks the plan (enums only); code renders sheet, audio and MIDI.
Demos and playgrounds provide small, inspectable ways to learn and test Jev.
Projects include starter examples, interactive sandboxes, minimal reproductions, notebooks, and focused demonstrations of Jev primitives or integration patterns.
Projects include starter examples, interactive sandboxes, minimal reproductions, notebooks, and focused demonstrations of Jev primitives or integration patterns.
Start with the documented use case, repository activity, primary language, license, and visible Jev implementation. GitHub stars are a dated discovery signal, not a quality score.
bestjev checks public repositories, project-authored documentation, code, demos, and other visible evidence. Always confirm current behavior and compatibility in the upstream project.
bestjev grounds this category in named primary sources: Official Jev documentation · Public GitHub repositories.
“Typed outputs that software can act on.”— TypeSafe AI