Jev directory
Jev Cookbooks
110 curated Jev entries. Official, runnable Jev recipes that show what decision models are good at, each with its own datasets, latencies, and numbers.
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110- Docs23
- Repos & sites53
- Videos8
- Posts10
- Playgrounds16
Updated
All 110 Jev Cookbooks
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Showing 49–96 of 110 resources
Fifteen runnable OpenRouter recipes for Jev covering support triage, database indexing, PII scanning, moderation, lead scoring, a browser agent, and a Gmail labeler, each with a small labelled dataset and saved live results.
Jev Cookbooks#community#javascript#openrouter
Community
nexibeo/jev-cookbookJavaScript
nexibeo/jev-cookbookJavaScriptA demo application that navigates a Neo4j graph one hop at a time: Jev gets the outgoing relationships as a Choice plus a goal Noul in one system_one call, and beam search follows the probabilities.
Jev Cookbooks#community#python#neo4j
Community
jexp/neo4jevJupyter Notebook
jexp/neo4jevJupyter NotebookA ManiSkill demo where plain-English goals drive a simulated Franka Panda: Jev picks one primitive per step from a catalog of about 30 hardcoded skills, and Python executes the move. No training or policy.
Jev Cookbooks#community#python#robotics
Community
TarunTomar122/jev-askable-armPython
TarunTomar122/jev-askable-armPythonTwo WebAssembly builds of the Chocolate Doom 3.1.1 engine play the same Freedoom map from the same initial state, with a Jev Choice decision picking each tactical macro and a local controller turning it into inputs.
Jev Cookbooks#community#typescript#games
Community
lukaske/jev-doom-agentTypeScript
lukaske/jev-doom-agentTypeScriptA Chinese and English lateral-thinking puzzle site hosted by Jev: Choice questions classify player questions and check proposed solutions against required facts, while code enforces confidence thresholds before a puzzle is marked solved.
Jev Cookbooks#community#typescript#games
Community
spoonnotfound/soupbaseTypeScript
spoonnotfound/soupbaseTypeScriptA tldraw canvas controlled by voice and a webcam-tracked fingertip: every partial transcript triggers one Jev request through OpenRouter's Decisions API that decides the action, shape, colour, and place.
Jev Cookbooks#community#javascript#browser
Community
gaborishka/jev-canvasJavaScript
gaborishka/jev-canvasJavaScriptAn original Civilization II browser harness for Jev: named Choice vectors cover empire policy, cities, research, diplomacy, units, exploration, and warfare, with live decision probabilities in a Roman-themed spectator display.
Jev Cookbooks#community#python#games
Community
phyous/tsai-civ2Python
phyous/tsai-civ2PythonA social network where 10,000 computed personas read your post: Jev scores who the text is for to pick the first 600 readers, then answers one Choice per persona for its reaction.
Jev Cookbooks#community#javascript#cloudflare
Communitygaborishka/jevtownJavaScript
gaborishka/jevtownJavaScriptA desktop Snake experiment where Jev assesses the board each tick and Python combines its answers into a move; one recorded run reached 29 foods in 461 ticks before trapping itself.
Jev Cookbooks#community#python#games
Community
siroccomask/snake-jevPython
siroccomask/snake-jevPythonA terminal Wikipedia link-race tool: Chromium fetches article pages, Jev ranks their outgoing links by expected remaining hops, and Python runs a beam search without a search API or a controller model.
Jev Cookbooks#community#python#cli
Community
komikat/jev-bfsPython
komikat/jev-bfsPythonA self-hosted AI trading platform that can put Jev in front of strategy and Quick Trade entry orders as an auditable PASS/REJECT gate, with LLM fallback and deterministic bypasses for exits and protective orders.
Jev Cookbooks#community#python#trading
Community
OpenByteInc/QuantDingerPython
OpenByteInc/QuantDingerPythonA MuJoCo and Franka Panda workbench where Jev chooses the next manipulation step for pick-and-place, stacking, and obstacle-carry tasks, with rule baselines and side-by-side model comparison.
Jev Cookbooks#community#python#robotics
Community
FBddcz/embodied-jevPython
FBddcz/embodied-jevPythonBrowser lab where every 2048 move is one Jev Choice over the four directions with no heuristic fallback, surfacing the probability distribution, confidence, latency and token cost live.
Jev Cookbooks#community#typescript#games
Community
ARCJ137442/jev-2048TypeScript
ARCJ137442/jev-2048TypeScriptCloudflare Worker and React app that sends pasted corporate prose through about 45 typed Jev questions, then emits rustc-style diagnostics for passive-aggression, urgency and information density.
Jev Cookbooks#community#typescript#cloudflare
Community
asfarsadewa/human-compilerTypeScript
asfarsadewa/human-compilerTypeScriptAn experimental iOS app that turns an on-device Qwen3-VL model into a multiple-choice decision tool: it reads next-token logits for A/B/C and scores 2-26 supplied options without generating any text.
Jev Cookbooks#community#swift#ios
Community
NullPo-jp/PocketJevSwift
NullPo-jp/PocketJevSwiftTwo-stage Jev control of a Franka Panda in MuJoCo: Jev selects a task intent, then X/Y/Z directions and a gripper command executed against real contacts, with 43 of 50 Jev episodes succeeding versus 48 of 50 for a rule baseline.
Jev Cookbooks#community#python#robotics
Community
lykycy123/RoboJEVPython
lykycy123/RoboJEVPythonAn SO-101 workbench where an evaluation model or rules baseline picks bounded joint steps from typed candidate actions: decision runs are spend-capped via the Vercel AI Gateway and drive a real LeRobot arm or mock hardware.
Jev Cookbooks#community#typescript#robotics
Community
grmkris/robo-harnessTypeScript
grmkris/robo-harnessTypeScriptA local, read-only Gmail triage app that sorts mail into five trays with Jev: each message becomes one experimental_evaluate call answering tray, urgency, and human-written questions, and 1,000 emails sort in about a minute for around 3 cents.
Jev Cookbooks#community#typescript#privacy
Community
fazlerocks/jevmailTypeScript
fazlerocks/jevmailTypeScriptA joke npm package that left-pads a string by asking Jev to choose among space_0 through space_10 in one Choice, spending a model call where padStart() would do.
Jev Cookbooks#community#javascript#demo
Community
f/jev-leftpadJavaScript
f/jev-leftpadJavaScriptA side-by-side T-Rex game where local Laya runs on Apple Silicon through MLX and hosted Jev uses the TypeSafe API, showing choices, latency, survival streaks, and crash replays on one course.
Jev Cookbooks#community#python#games
Community
virajbhartiya/laya-vs-jevPython
virajbhartiya/laya-vs-jevPythonA multiplayer demo workflow builder for Jev built with Liveblocks: wire Jev and LLM steps together, call the workflow through a REST API, and preview test runs with shared state and cursors.
Jev Cookbooks#community#typescript#demo
A chat-shaped command bar where Jev picks the tool, arguments, confirmation, and reply type each turn, and code calls the MCP servers, so no LLM ever writes the reply text.
Jev Cookbooks#community#typescript#mcp
Community
w3cj/jev-chatTypeScript
w3cj/jev-chatTypeScriptA fine-grained robot control study loop for LIBERO tasks: Jev layers an intent, a contact or motion family, and one of 27 control inputs, while reversible MuJoCo previews evaluate each candidate before execution.
Jev Cookbooks#community#python#robotics
Community
Dimweaker/jev-liberoPython
Dimweaker/jev-liberoPythonA local 3D reference gallery where Jev chooses search phrases and highlights matching Met, NASA, Cosmos, and Prelinger Archive items from their text metadata.
Jev Cookbooks#community#typescript#demo
Community
AlbionaHoti/refgardenTypeScript
AlbionaHoti/refgardenTypeScriptInteractive browser experiments that expose Jev's judgments: a support-message Decision Lab and a driving simulation where structured sensor state becomes typed steer, brake, and overtake decisions.
Jev Cookbooks#community#javascript#demo
An observable stealth game where Jev supplies guards' split-second judgments while deterministic code owns the 30 Hz simulation, validates every proposal, and exposes each decision in a Decision Lens.
Jev Cookbooks#community#typescript#games
Community
AbdelStark/heist-oneTypeScript
AbdelStark/heist-oneTypeScriptAn OpenRouter Labs recipe that has Claude rewrite a pasted prompt into Jev questions, then runs Jev on every row while a chat model races the same job, comparing answers, requests, time, cost, and accuracy.
Jev CookbooksPlayground#community#openrouter#playground
Community
A single shared chess game where visitors play against Jev, which weighs every legal move at once as one Choice question and shades the board with its probabilities.
Jev CookbooksPlayground#community#playground#demos
Community
A Telegram channel X-ray that pulls up to 1,500 public posts from the past year and has Jev rate each one, tallying news, ads, jokes, and clickbait into a shareable card.
Jev CookbooksPlayground#community#playground#demos
Community
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.
Jev CookbooksPlayground#community#playground#demos
Community
A hosted checker and public API that takes a pasted software idea and returns a Jev verdict with success potential, backed by a task guide and a POST /api/fit endpoint.
Jev CookbooksPlayground#community#playground#api
Community
A live Val Town demo that re-asks 16 typed judgments about your text in a single API call on every keystroke, covering traits like passive-aggressive, AI-written, tone, and urgency.
Jev CookbooksPlayground#community#playground#demos
Community
A semantic mapping playground where you choose any two concepts as axes, add words or phrases, and Jev places each one by how strongly it relates to both axes.
Jev CookbooksPlayground#community#playground#demos
Community
A public Convex-backed demo that invites visitors to run a million judged questions, showing the real-time app shape around a decision model.
Jev CookbooksPost#community#x#demo
Community
Semantic search over GitHub's Terms of Service: one request ranks all 218 lines with a Choice while a Noul checks whether the document contains an answer at all, including when it should say no.
Jev CookbooksDocs#official#cookbook#search
Official
A two-stage extraction cascade: a mini model extracts, a Noul battery verifies each field in one request, and a 0.7 gate escalates to a reasoning model, sitting on the cost/quality frontier.
Jev CookbooksDocs#official#cookbook#extraction
Official
Turn natural language into typed function calls: closed-set arguments become Choice questions, optional ones become Noul questions, and 54 questions ship in one request for a trading assistant.
Jev CookbooksDocs#official#cookbook#tool-calling
Official
Decide which of 450 candidate product pairs from two beer catalogues describe the same entity: one three-level Score per pair splits 40 merges, 50 curator reviews, and 360 non-matches.
Jev CookbooksDocs#official#cookbook#entity-matching
Official
Catch wrong and hallucinated citations against RFC 7519 with a string match plus one Choice question: four accurate citations verified at 0.93 or more and all four planted failures caught.
Jev CookbooksDocs#official#cookbook#citations
Official
A repeatability study: an 8-question moderation rubric run 15 times per condition shows a mean probability standard deviation of 0.0098, and a 0.60 uncertainty gate lifts agreement to 99.2%.
Jev CookbooksDocs#official#cookbook#consistency
Official
A 14-Noul claims-triage rubric over one insurance claim, repeated 15 times: mean probability standard deviation of 0.0102 at 111 ms per call, with a 0.30 to 0.70 band for human review.
Jev CookbooksDocs#official#cookbook#consistency
Official
Extract dates by asking seven Choice questions about a date's shape and parts, then resolving them in code: five of six examples auto-accepted and missing dates flagged at 0.46 confidence.
Jev CookbooksDocs#official#cookbook#extraction
Official
Score retrieved passages with four Noul questions each, then route in code: prompt injections dropped, false premises kept as conflicts, and evidence assembled separately for the generator.
Jev CookbooksDocs#official#cookbook#search
Official
Rank 182 agent skills in one request and re-read the top three in a second: over 488 requests, wrong skill loads fell from 16.8% to 7.3% and needless loads from 9.8% to 4.0%.
Jev CookbooksDocs#official#cookbook#agents
Official
Reconstruct Markdown from unformatted text in two requests: 16 Noul line-pair questions stitch split sentences, then 62 questions classify each block's type and companions.
Jev CookbooksDocs#official#cookbook#formatting
Official
Turn wine tasting notes into 67 numeric columns for a CatBoost regressor: five rounds of reading its own errors cut held-out RMSE from 3.09 to 1.77 across 800 unseen reviews.
Jev CookbooksDocs#official#cookbook#research
Official
Regex finds candidate emails, phone numbers, and amounts; Jev picks the requested span so code copies a verbatim value that cannot be invented, with no free-text extraction required.
Jev CookbooksDocs#official#cookbook#extraction
Official
An experimental controller that has Jev choose NES inputs to play Super Mario Bros. from structured emulator telemetry instead of screenshots, logging every decision with probabilities and latency.
Jev Cookbooks#community#python#games
Community
fhshaik/typesafe-marioPython
fhshaik/typesafe-marioPythonIndex of all 110 entries
- Fr0zencr4nE Jev Data
- Jev AI Course (0utKast)
- 10 Levels of Jev
- Jevify (investigation prompt)
- DIY Jev
- DSPy System One agent patterns
- Jev tutorial (Fastcampus)
- Jev Gtm Cookbook
- Jev Cookbook — jev-engineering
- Jev Samples
- system-one (ignitewala)
- Jev decision-model share pack (Chinese)
- code_2 — Fast decisions with Jev
- Gate Agent Tool Calls with Jev
- Cut LLM Cost with a Jev-Verified Cascade
- Document Review With Unsiloed and TypeSafe Jev
- Simple Memory System Cookbook
- Twitch Chat Filter Cookbook
- Jev Handson
- Jev Resume Screening
- Killmyidea
- Warrenduffer
- Voice turn-end detection with Jev
- JEV ARCADE
- Jev Plays — jevboardgames.everpaper.app
- Jev plays Pac-Man
- Tetris × TypeSafe
- Jev Chess — chess-jev.loomens.com
- Companion
- Room
- Hollow Creek
- Understand Jev (the only video you need)
- TypeSafe AI Jev: 50 Financial Jobs, Verifiable Demos & Honest Limits
- Jev runs through years of bookmarks
- 3,518 Intern Applications Checked In 4:54
- Jev plays ViZDoom with two decision channels
- A Grammarly-like Mac app built on Jev
- A Jev bot trading Kalshi markets
- A/B testing hooks against 100 personas
- Playground
- Clarity Judge — TypeSafeAI
- Jev plays StarCraft shareware
- Jev Plays Pokemon Red
- Jev Trade — aowang-ai
- Jev Social
- TypeSafe Fun AdBlocker
- Jev Web Analyzer
- Jev Plays Snake
- Jev Cookbook — nexibeo
- Neo4jev
- Askable arm
- PROMPT FPS
- Soupbase
- Jev Canvas
- Jev × Civilization II
- Jevtown — gaborishka
- Snake Jev
- Jev Bfs
- QuantDinger
- EmbodiedJev
- 2048 × Jev
- Human Compiler
- PocketJev
- RoboJEV
- Robo Harness
- Jevmail — fazlerocks
- Jev Leftpad
- Laya vs Jev — virajbhartiya
- Jev workflow builder
- Jev Chat — w3cj
- Jev × LIBERO
- RefGarden
- TypeSafe Experiments
- HEIST//ONE
- OpenRouter Labs: Prompt to questions
- JEV CHESS — jevchess.com
- Jev Wrapped — wrapped.ivanhabor.com
- Yes / No — Free Jev Demo
- Jev Fit
- TypeSafe Typewriter
- SemanticSpace
- A million judged questions
- Cookbook: Line-by-Line Search
- Cookbook: SDE Cascade
- Cookbook: Function Calling
- Cookbook: Knowledge Graph Entity Alignment
- Cookbook: Double-Checking Citations
- Cookbook: Self-Consistency for Choices
- Cookbook: Self-Consistency for Nouls
- Cookbook: Date Extraction
- Cookbook: Classifying RAG Passages
- Cookbook: Skill Suggestion
- Cookbook: Structure Recovery
- Cookbook: Autoresearch Feature Discovery
- Cookbook: Pre-Parsed Value Extraction
- TypeSafe Mario
- Jev Drone
- Jev Trading Bot Demo
- Classifying 1,500 Real Emails
- Browser Use with Jev + Stagehand
- Jev-Powered Browser Use Preview
- 700 Leads Scored for $0.09
- When a Designer Gets Jev
- A Live BS Meter on a Debate
- Cookbook: Parallel Questions
- Cookbook: Re-ranking
- Cookbook: Guardrails for LLMs
- Cookbook: Hierarchical Classification
- Cookbook: Classification Using Confidence
- Demo: Smart Home Assistant
Start here with the Jev AI model
Featured entries in cookbooks.
One question per query-candidate pair raises top-1 accuracy from 5% to 18% and top-10 accuracy from 38% to 62% on 40 CLERC legal queries.
Jev CookbooksDocs#official#cookbook#reranking
Official
Jev AI model articles
Original guides that go deeper on Jev cookbooks.
Retrieval is a sequence of bounded judgments. How a decision model slots into passage filtering, semantic find, reranking, and citation checks, and what stays in deterministic code.
Jev Cookbooks#retrieval#reranking#rag
Read article
Jev bills input tokens and gives output away, and questions in one request run in parallel. The design consequence is simple: ask more per call, then decide in code.
Jev Cookbooks#batching#patterns#search
Read article
From the Jev community
Watch walkthroughs, read the threads, and see what builders are posting.
YouTube: Retriever AI tests Jev on real browser tasks: where it worked, where it struggled, and what comes next.
YouTube: One terminal, three subscriptions, and Jev picking the model for Claude Code, Codex, and Cursor.
YouTube: A podcast segment on TypeSafe AI, its $40M raise, and the Jevons paradox behind the name.
Hacker News: Software Bombe and live Enigma demo where Jev ranks cribs and judges plaintext.
ag_212 pointsShow HN: Jev as the Bletchley Park Analyst: A Software Bombe on EnigmaRead the thread on Hacker NewsHacker News: Show HN for the decide CLI: brew install, file context, and multi-question shell scripts.
vsekhar2 pointsShow HN: Decide – Jev decisions in the shell, scripts, and agent skillsRead the thread on Hacker NewsHacker News: Pipeable onesie CLI with shell-safety exit codes and a calibrate mode over labelled commands.
frodikarlsson3 pointsShow HN: onesie – An expressive Unix-pipeable CLI for System One models like JevRead the thread on Hacker NewsHacker News: Spoken-language learning with video scenes branching on TypeSafe Jev.
j_rcht1 pointShow HN: Worklaude – learn by speaking; video scenes branch on TypeSafe JEVRead the thread on Hacker News