The Jev launch post
Diogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
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Recent activityA FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
Diogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
TypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
TypeSafe announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
TypeSafe highlights Jev’s typed-output approach: applications provide state and questions, then act on probabilities, choices or scores. The linked announcement also covers the Venice API integration.
Start with the Launch Post. Explore four official signals.
301 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Active-learning CLI that uses human labels and GEPA to improve Jev decision definitions.
github.comsutro-sh/jev-alignExplore this project ↗Source-linked curation
A predictive app launcher using Jev to interpret user intent and enhance app discovery.
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A community post describing adaptive in-app support using Jev to provide real-time assistance based on user struggles.
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A curated list of awesome Jev / TypeSafe System One applications, libraries, and resources.

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A tool using Jev to make copy-paste interactions smarter by deciding content based on context.
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A tool controlling Ableton Live with concise commands, leveraging Jev's decision-making capabilities.
github.comokinaaudio/live-jevExplore this project ↗Source-linked curation
High-speed recursive AI Elo tournament engine powered by Jev and Swiss matchmaking.
github.comopaielsheikh/ai-elo-rankerExplore this project ↗Source-linked curation
TrustGate — indie media T&S gate via TypeSafe Jev.
github.comndolinschi/trustgateExplore this project ↗Source-linked curation
Hemant Kumar on his 151M ModernBERT reproduction: 0.83% adaptive calibration error, 3.0% of predictions flip when the option list is reversed, 35.6ms on CPU, with the failed use cases reported alongside the wins.
x.comVerdict (Open-jev) launch threadExplore this project ↗Source-linked curation
X timeline labeler. A community post describing a Chrome extension that categorizes X posts into types like engagement bait or promo.
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Using Jev to create Clay workflows instantly, leveraging its capabilities for rapid development.
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A collection of notable Jev projects shared on X, highlighting various applications and experiments.
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Zod validates the shape, Jev validates the meaning: semantic checks on request bodies become calibrated probabilities you threshold in code.
github.comjomatsu/zod-jevExplore this project ↗Source-linked curation
Recursive Jev choice over a taxonomy. Select from more than 255 options without breaking TypeSafe Jev's choice cap.
github.comreachjalil/jev-treeExplore this project ↗Source-linked curation
A simple Spring Boot 4 starter for TypeSafe Jev using Spring MVC and RestClient.
github.comdanvega/jev-spring-boot-starterExplore this project ↗Source-linked curation
Curated Jev resources and runnable examples for typed AI decisions.
github.comAppitStudio/awesome-jevExplore this project ↗Source-linked curation
Arbiter provides a tool to serve custom decision models through a Jev-shaped API, allowing developers to create tailored decision-making systems.
github.com0xBakeer/arbiterExplore this project ↗Source-linked curation
Put your code comments on trial. Powered by Jev.
github.comntedvs/commentcopExplore this project ↗Source-linked curation
An idiomatic Zig client for the TypeSafe AI API.
github.commattneel/typesafe.zigExplore this project ↗Source-linked curation
Pull request adding Jev to station-suggestion reranking in the TrainLCD transit app.
github.comTrainLCD/Functions/pull/33Explore this project ↗Source-linked curation
CartShield — SMB checkout fraud disposition via TypeSafe Jev.
github.comndolinschi/cartshieldExplore this project ↗Source-linked curation
Desktop writing app using Jev for fast structured writing judgments.
x.comJev in a Grammarly-style Mac appExplore this project ↗Source-linked curation
Open-source AI-driven pointer companion for Mac, using Jev or Gemini Live to control the cursor with local processing.
x.comTipTourExplore this project ↗Source-linked curation
Codebase search powered by Jev from @typesafe-ai.
github.comellipsis-dev/blinkExplore this project ↗Source-linked curation
Free, no-signup Noul demo. Ask a question, get yes, no, or maybe, with web search when needed.
yesno.coderai.devYes / NoExplore this project ↗Source-linked curation
Jev is integrated with Cloudflare AI Gateway to provide structured answers to typed questions.
x.comJev on Cloudflare AI GatewayExplore this project ↗Source-linked curation
A teleprompter of talking points that checks each one off as you cover it, using TypeSafe's Jev Score questions.
github.comfinetuningsingh/intelliprompterExplore this project ↗Source-linked curation
A tool for tracking decisions made by Jev, using Arize's instrumentation for detailed analysis.
arize.comTrace every judgment with PhoenixExplore this project ↗Source-linked curation
CLI that finds PII in text with TypeSafe Jev: presence, sensitivity, and located spans.
github.comcoo-quack/jev-pii-checkerExplore this project ↗Source-linked curation
A compiler for human language. Paste text, get diagnostics. Measured by TypeSafe Jev.
github.comasfarsadewa/human-compilerExplore this project ↗Source-linked curation
PHP SDK for TypeSafe's Jev: send text and typed questions, get typed answers with calibrated confidence. PHP 8.1+, works with any PSR-18 client, Laravel 8–13.
github.commzainzulifqar/jev-php-sdkExplore this project ↗Source-linked curation
Ruby client for typesafe.ai.
github.comjoshmn/typesafe-sdkExplore this project ↗Source-linked curation
Scam text message filter powered by TypeSafe's Jev model.
github.comShupingR/scam-shieldExplore this project ↗Source-linked curation
Anthony Maio's essay on what a model that cannot generate text is for.
anthonymaio.substack.comJev: The Language Model That Will Not TalkExplore this project ↗Source-linked curation
Typesafe/Jev public X demo.
github.comcardotrejos/jev-should-i-applyExplore this project ↗Source-linked curation
Work-in-progress demo of Jev driving Minecraft, including fleeing zombies at night.
reddit.comJev plays Minecraft (r/accelerate)Explore this project ↗Source-linked curation
Run a JSON Schema through TypeSafe's Jev API, and get JSON back.
github.comKiln-AI/jev_jsonschemaExplore this project ↗Source-linked curation
三大クラウドの機能名を、TypeSafe AI の System One モデル Jev が確率つきで判定するデモ.
github.comminorun365/jev-cloud-quizExplore this project ↗Source-linked curation
Dasheng is a GitHub tool combining speech recognition with Jev for real-time word-by-word transcription and marking of spoken content.
github.comwquguru/dashengExplore this project ↗Source-linked curation
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).
github.comn-yokomachi/jev-devExplore this project ↗Source-linked curation
Selective list behind a 10-star bar, with hands-on reviews at mrjev.com recording what each tool sends and where.
github.comMrJev/awesome-jevExplore this project ↗Source-linked curation
A developer project involving three Claude Code hooks that query Jev for specific information.
github.comjakenbear/the-jev-enatorExplore this project ↗Source-linked curation
Demos to test the effectiveness of TypeSafe's "Jev" System One Model.
github.comBud-ro/jev-demosExplore this project ↗Source-linked curation
Pydantic AI capabilities made stronger with Jev: small runnable demos, one file each.
github.comadtyavrdhn/pydantic-jev-examplesExplore this project ↗Source-linked curation
HireSignal — resume first-pass fit+interview via TypeSafe Jev.
github.comndolinschi/hiresignalExplore this project ↗Source-linked curation
A polished OpenAI + TypeSafe Jev terminal interface for answers with transparent decision reports.
github.comhaseeb-heaven/jev-system-oneExplore this project ↗Source-linked curation
TypeScript CLI that finds code, docs, logs, and text by natural-language conditions using Jev Noul judgments, with probability thresholds, source lines, and cached results.
github.comYehuiTang0316/jev-nlgrepExplore this project ↗Source-linked curation
Probabilistic decisions for Python. Use Jev or bring your own provider; crawl with Playwright.
github.comyairshy/decidoExplore this project ↗Source-linked curation
An integration with jev by typesafe.ai in Rust.
github.comtinyhumansai/tinyjevclientExplore this project ↗Source-linked curation
A guide on integrating Jev with LiteLLM for simplified model calls through an existing proxy.
docs.litellm.aiJev through LiteLLMExplore this project ↗Source-linked curation
A developer tool for decision runtime with zero-token caching and a calibrator, collected for the tools shelf.
github.comseb4ez/jevguardExplore this project ↗Source-linked curation
Give your Jev language.
github.comNolane-x/JEV-languageExplore this project ↗Source-linked curation
Page-level demo where Jev picks which candidate link to click toward a goal.
x.comWiki-link clicker demoExplore this project ↗Source-linked curation
A directory of Jev-related demos with categorization and submission options.
jevable.comJevableExplore this project ↗Source-linked curation
Community Go SDK for TypeSafe AI Jev / System One.
github.comStumble/jev-goExplore this project ↗Source-linked curation
Small dependency-free CLI for TypeSafe Jev.
github.comtumf/jev-cliExplore this project ↗Source-linked curation
Low-latency audio censorship POC using Jev typed decisions and ffmpeg.
github.comsantos-sanz/jev-audio-beeperExplore this project ↗Source-linked curation
Work-in-progress PR reviewer with plain-English Jev rules.
x.comjev-rabbit PR review botExplore this project ↗Source-linked curation
Jev is explained in a community post with no detailed technical information.
x.comJev Clearly ExplainedExplore this project ↗Source-linked curation
Idiomatic Go SDK for the TypeSafe AI API.
github.comzhirschtritt/typesafe-goExplore this project ↗Source-linked curation
Test a post against 10,000 synthetic personas before you publish it.
crowdcheck-ai.vercel.appCrowdcheckExplore this project ↗Source-linked curation
Latency-first Rust SDK for TypeSafe System One.
github.comAbdelStark/typesafe-rsExplore this project ↗Source-linked curation
PHP & Laravel SDK for TypeSafe AI's JEV Model series.
github.combinnash/typesafe-sdkExplore this project ↗Source-linked curation
Semantic schemas over TypeSafe's Jev — validate the state locally, then project typed answers.
github.commateonunez/jodExplore this project ↗Source-linked curation
Compare GPT generated language with JEV structured Noul decisions on the same input.
github.comTanayPadar/gpt-vs-jevExplore this project ↗Source-linked curation
Typed decisions from a System One model. An uncertain answer is a different type from a confident one — and the compiler makes you handle it.
github.comqddegtya/qualmExplore this project ↗Source-linked curation
Go SDK for TypeSafe AI API https://docs.typesafe.ai/api.
github.comchez-shanpu/typesafeai-goExplore this project ↗Source-linked curation
📡 全网最全 · The world's most comprehensive tracker of the Jev (TypeSafe AI System One) ecosystem — 220+ documented cases · 108 confidence-graded entries · verified & rescanned every 3 hours · API access guide included.
github.comeveryinfra/jev-radarExplore this project ↗Source-linked curation
Typed semantic decisions for Unix pipelines and CI, powered by TypeSafe AI Jev.
github.comsharziki/semdecideExplore this project ↗Source-linked curation
Job Risk Analyzer: CLI and REST API that uses Jev to score an occupation's exposure to AI-driven layoffs and its resilience.
github.comWeSecureYou/Jev-testExplore this project ↗Source-linked curation
Go SDK for the TypeSafe AI API — typed questions in, probability distributions out.
github.comTangerg/typesafe-sdk-goExplore this project ↗Source-linked curation
A GitHub tool that requests Jev's approval before merging pull requests.
github.commetalbear-co/jev-auto-approveExplore this project ↗Source-linked curation