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The full directory

All Jev AI model resources

Entries for TypeSafe AI's flagship System One model — official docs and SDKs alongside community clients, tools, and write-ups.

Entries
3,919
Categories
11
Official
102
Community
3,817
Source sites
293
Deep dives
3,919

By format

3919
  • Docs169
  • Repos & sites3102
  • Videos74
  • Posts104
  • Articles392
  • Playgrounds78

Updated

Browse the Jev AI model by category

11 ways into the ecosystem. Each category page leads with its own shortlist of starting points.

Browse the Jev AI model by use case or industry

The same directory, sliced by what you are building and who you are building it for.

Jev use cases13 ways to put Jev to work, from classification and routing to decision gating and evaluation.
Jev industries14 sectors building with Jev, from software and security to healthcare and robotics.

All 3919 Jev AI model resources

Search the full directory, or filter by category and tag.

Showing 721–768 of 3919 resources

Jev-Lite
0GitHub stars
An open-source, non-autoregressive System One decision engine inspired by TypeSafe AI: it evaluates state context against typed questions in a single forward pass, returning probability distributions and calibrated confidence without generating text.
Jev Repos & SDKs#community#github#python
CommunityAtulmishra22/jev-litePython
AA Signals
0GitHub stars
A pay-per-signal API for autonomous agents: Jev verifies the buy, sell or hold call for symbols like BTC, ETH and TAO, and each signal returns a Jev-scaled confidence plus a 0-100 composite score. Calls settle in USDC on Base via x402 at $0.05.
Jev Tools & CLIs#community#github#crypto
CommunityCRYPDRYP/aa-signals
Nudge for Omarchy
0GitHub stars
An Omarchy launcher where you describe what you need and JEV routes it to a reviewed safe operation, settings panel or keyboard shortcut from a live command catalogue. Clear matches run; Preview only shows the plan.
Jev Tools & CLIs#community#github#python
CommunityCozidian/omarchy-jevPython
Pi-JEV-VCC Memory Relevance
0GitHub stars
A pi coding-agent extension that ranks long-term memory files against the current context with a yes/no classifier read from native token logits. It triggers on cold start, post-compaction and an on-demand tool, and offers a prior, not a verdict.
Jev Integrations & Adapters#community#github#python
CommunityDAXZEIT/Pi-JEV-VCC-memory-relevancePython
Crossy Road Jev
0GitHub stars
A browser Crossy Road clone where you play with keyboard or touch, or hand the controls to Jev (TypeSafe jev-latest) and watch it play live. Jev reads a structured screen description, never pixels, and picks one of five actions.
Jev Demos & Experiments#community#github#javascript
CommunityFLX-20/crossy-road-jevJavaScript
Jev (FelipeTurcatti proof of concept)
0GitHub stars
A GitHub repository whose entire published description is 'Proof of concept for jev'. No README was captured and the metadata lists no language, no license and no stars, so the proof of concept itself cannot be described.
Jev Demos & Experiments#community#github#proof-of-concept
CommunityFelipeTurcatti/jev
Context Atlas
0GitHub stars
A PHP library that structures a document section by section by the kind of text each part is, then, given a question, gathers the few hundred tokens that answer it instead of the whole document, aimed at improving RAG chunking. Powered by Jev.
Jev Repos & SDKs#community#github#php
CommunityFox-Islam/context-atlasPHP
nimble-triage
0GitHub stars
A Python CLI that pipes log files through a local decision model: Nimble, served by Ollama, gives every entry a severity, a category and a needs-attention flag, computed entirely on your own machine.
Jev Tools & CLIs#community#github#cli
CommunityGauravGupta035/nimble-triagePython
System One
0GitHub stars
A free animated course on System One decision models, covering TypeSafe Jev alongside OpenAI Decisions, Cloudflare Clef and AWS Strands Decider: 22 short lessons backed by 199 sources and 14,318 API calls the authors ran themselves.
Jev Guides & Articles#community#github#course
CommunityHaple/system-oneJavaScript
Jev Telegram Channel Router
0GitHub stars
A Telegram bot that subscribes to any public channel, filters every new post with Jev judgments and routes the matches to your private chat or channels you manage, with filter, categorize and aggregate patterns.
Jev Integrations & Adapters#community#github#telegram
CommunityHuXioAn/jev-telegram-channel-routerPython
system-one
0GitHub stars
A GitHub repository named system-one by JacobEGarcia whose detected language is HTML. It has no description, README, topics or license, and it was created and last pushed on 2026-09-25, so its contents cannot be verified.
Jev Repos & SDKs#community#github#unverified
CommunityJacobEGarcia/system-oneHTML
TypeCheck
0GitHub stars
An image-only Discord moderation bot powered by Jev, formerly Jev Image Guard. It checks exact normalized-image hashes first, sends the remaining references to Jev, and lets a policy engine choose the action.
Jev Integrations & Adapters#community#github#discord
CommunityJev-Engineering/TypeCheckTypeScript
TagSense
0GitHub stars
An Obsidian plugin that tags notes automatically with multiple tags from your own tag list: Jev checks every tag independently in one request, shows its confidence first and never invents tags you have not defined.
Jev Integrations & Adapters#community#github#obsidian
CommunityJimmyCallSaul/tagsenseJavaScript
AmberFlow
0GitHub stars
A frozen-plan browser automation middleware for TypeScript and Node 22.6+: an LLM plans once, local rules and decision models execute step by step, and after one demonstrated run it can repeat the plan offline.
Jev Integrations & Adapters#community#github#automation
CommunityJohnly1986/AmberFlowTypeScript
JEV
0GitHub stars
A public GitHub repository named JEV by Jphone09. It was created and pushed within the same second on 2026-10-07 and lists no description, README, language, topics or license, so whether it relates to TypeSafe's Jev is unconfirmed.
Jev Repos & SDKs#community#github#unverified
CommunityJphone09/JEV
JEV Website Source Analyzer
0GitHub stars
A Python tool that crawls the publicly served source of a website and uses JEV to flag genuine bugs and security issues, reporting bug probability and confidence scores and listing the most suspicious resources.
Jev Tools & CLIs#community#github#security
CommunityKhelendrameena/jev_based_BUG_SCANERPython
JevMail
0GitHub stars
An Outlook add-in for Microsoft 365 work and school accounts, powered by Jev from TypeSafe AI. The captured README is a two-line pitch, so features, setup and pricing are not documented in the digest.
Jev Integrations & Adapters#community#github#outlook
CommunityKoh-Henry/JevMailTypeScript
SystemOneModels
0GitHub stars
A Python study collection for System One models: notes on Jev and its API primitives, a comparison against Laya, Cerebellum-2B, Kev-0.5B, BERT and XGBoost, and working demos including a local Laya run and an OpenJev API demo.
Jev Demos & Experiments#community#github#python
CommunityLancer59/SystemOneModelsPython
System One
0GitHub stars
An open-source, local-first and cross-platform runtime for System One decision models that exposes a Jev-compatible POST /v1/systemone API and a native CLI without Python, PyTorch, Transformers, Conda or a virtual environment.
Jev Repos & SDKs#community#github#rust
CommunityLiteVar/system-oneRust
System One
0GitHub stars
An experimental semantic decision runtime for ordinary Hugging Face causal language models: it returns typed Boolean or Choice distributions straight from logits, reuses context prefill across fields and can compile repeated fields into small classifiers.
Jev Repos & SDKs#community#github#python
CommunityLuke458/system-onePython
Bipu
0GitHub stars
An SO-101 robot pet powered by Jev: send it messages through Telegram or the local interface and it answers with recorded movement and electronic calls, with a choreography mode for arranging motions and sounds.
Jev Tools & CLIs#community#github#robotics
CommunityMuurrphy/bipuPython
SystemOne MCP Project OpsPulse
0GitHub stars
A Python GitHub project named SystemOne_MCP_Project-OpsPulse by NeevWadhwa-Helloworld. Its README contains only the project title, with no description, topics or license, so any System One or MCP functionality is unverified beyond the name.
Jev Agents & MCP#community#github#mcp
CommunityNeevWadhwa-Helloworld/SystemOne_MCP_Project-OpsPulse-Python
SystemOne Demo: Winged Dash
0GitHub stars
A browser game for exploring fast, structured decisions with Laya: play the bird yourself, race a rule-based baseline, or watch a real decision model choose between flap and wait on seeded pipe sequences.
Jev Demos & Experiments#community#github#game
CommunityNitroAMD/SystemOne-DemoPython
jev-apply
0GitHub stars
Fills job applications page by page in a browser from a JSON profile, with plain rules answering common fields, a local decision model choosing among your own facts, and submit gated until you opt in.
Jev Tools & CLIs#community#github#job-applications
CommunityNoface07/SystemOne-ApplyPython
Tube Focus Mode
0GitHub stars
A Chrome extension that filters YouTube down to what you are actually there for: your channels, playlists and chosen topics stay sharp while everything else blurs, and Jev topic checks gate every video you open.
Jev Tools & CLIs#community#github#chrome-extension
Communityoriolsegarra/tube-focus-modeTypeScript
ScaleupMap Smart Onboarding
0GitHub stars
A hackathon onboarding system for ScaleupMap that replaces a static questionnaire with a Jev AI System-1 multi-factor scoring engine, producing a normalized six-dimensional cognitive weight vector and affinity scores across seven platform destinations.
Jev Demos & Experiments#community#github#hackathon
Communityrwilhelm-98/scaleupmaphackathonJavaScript
Customer Support Triage with Jev
0GitHub stars
A small FastAPI demo that triages customer support tickets with Jev as the decision layer: one request returns typed answers for department, urgency, refund intent and human-review need, while Python rules route and LangChain can draft a reply.
Jev Demos & Experiments#community#github#fastapi
Communityraushankumar035/customer-support-traige-with-jev-Python
TechBook RAG
0GitHub stars
A technical knowledge assistant that runs adaptive RAG over 11 technical books (2,810 chunks) with hybrid dense and BM25 search, reciprocal rank fusion and a JEV System-1 decision engine over a local vector database.
Jev Tools & CLIs#community#github#rag
Communityrudra-p11/techbook-ragHTML
jev-systemone
0GitHub stars
A typed TypeScript client for Jev System One models that sends a state plus Choice, Score or Noul questions to POST /v1/systemone and returns typed answers, with presets for TypeSafe, Zen and custom gateways.
Jev Repos & SDKs#community#github#typescript
Communitysc0d3r/jev-systemoneTypeScript
sys1npc
0GitHub stars
A small, mechanics-free System One decision core for game NPCs: the adapter supplies an observation and opaque legal actions, and a scripted or Jev provider picks one, with a deterministic offline provider for tests.
Jev Repos & SDKs#community#github#python
Communitysafiullahrattar/sys1npcPython
go-systemone
0GitHub stars
A Go client for the System One decision API. The repository has a one-line GitHub description and the sweep captured no README text, so the API surface and usage are unverified.
Jev Repos & SDKs#community#github#go
Communitysavid/go-systemone
jev-leads
0GitHub stars
A lead intake, qualification and routing service that buffers every inbound lead in local SQLite (WAL mode) for zero loss, qualifies it with Jev AI through OpenRouter, and syncs results to Airtable CRM.
Jev Tools & CLIs#community#github#crm
Communitysebasscontreras/jev-leadsTypeScript
Jev Movie Review Analyzer
0GitHub stars
A hands-on notebook experiment that runs movie reviews through Jev's Noul, Choice and Score questions, then feeds the structured answers into Python logic that flags weak positives for human review.
Jev Demos & Experiments#community#github#notebook
Communitysihaam20/jevJupyter Notebook
Jev (Silknode1 experiment)
0GitHub stars
A repository whose README and GitHub description both say only 'Typesafe.ai experiment'. Catalogued for discovery; the digest shows no code details, setup or stated purpose.
Jev Demos & Experiments#community#github#experiment
Communitysilknode1/jev
Find me a stop
0GitHub stars
An EV charging-stop planner: describe your situation in one sentence, set origin, destination, battery and arrival time, code filters candidates from Open Charge Map, and Jev picks the stop that fits your request.
Jev Demos & Experiments#community#github#ev-charging
Communitysuv4o/ev-charger-jevTypeScript
open-source-finder
0GitHub stars
A Python tool that reads every open issue in a GitHub repo and uses TypeSafe's Jev model to rank them for first-time contributors by how small, clear and self-contained they are, flagging issues someone has already claimed.
Jev Tools & CLIs#community#github#python
CommunityTanishk901/open-source-finderPython
semantic-drift-sentinel
0GitHub stars
A runnable reference implementation of semantic data quality: it catches silent meaning drift that passes every deterministic BigQuery check, treats a semantic quality score as a first-class ops metric, and puts a circuit breaker at the gate.
Jev Demos & Experiments#community#github#python
CommunityTanishque99/semantic-drift-sentinelPython
Jev Dashboard (lokal)
0GitHub stars
A minimal local dashboard and proxy for System One decision models: send one state with up to eight typed questions to Jev (TypeSafe API) or self-hosted Laya and get structured choice, score and noul answers rendered as charts.
Jev Tools & CLIs#community#github#dashboard
CommunityTommylegen/jev-laya-toolkitHTML
SystemOne-ONNX
0GitHub stars
A small from-scratch alternative to Jev and Laya-style System 1 decision models: a roughly 22M-parameter shared encoder trained with per-example calibrated confidence labels in PyTorch and exported to ONNX for local, sub-second inference.
Jev Models & Reimplementations#community#github#onnx
CommunityViratvishnu13/SystemOne-ONNXJupyter Notebook
Jev
0GitHub stars
A TypeScript package for one-line local AI decisions: calibrated choice, noul and score answers from open models such as kev-0.6b and kev-4b, with no API keys and no cloud, and models auto-downloaded on first use.
Jev Repos & SDKs#community#github#typescript
Communityamatelic/jevTypeScript
Jev × Laya Research Notes
0GitHub stars
A Chinese-language research collection on System One decision models: it compares JEV and Laya academically and operationally, maps enterprise adoption, teaches Laya locally from setup to fine-tuning, and reads the Laya source. Research finished 2026-09-24.
Jev Guides & Articles#community#github#docs
Communityamosli/jev
Intent Router — Hybrid Edition
0GitHub stars
A dual-process intent router: Jev acts as System 1, returning the intent, human-review probability, utterance type and a score-based guardrail risk in 70-500 ms, while Gemma acts as System 2 only when Jev is uncertain or risk is elevated.
Jev Integrations & Adapters#community#github#python
Communityanujgupta9860/intent-router-hybridPython
System One
0GitHub stars
A self-hosted System One service that runs Laya through MLX on Apple silicon and keeps the model's native request and response format, exposing fast typed decisions to your own devices over a private Tailscale HTTPS endpoint.
Jev Tools & CLIs#community#github#macos
Communityarhamj/system-onePython
Semantic Control Systems (SCS)
0GitHub stars
A reference architecture and simulation framework for semantic control: natural-language directives are decoded by a fast System-1 decision model like Jev into deterministic hardware control signals, supervised by a System-2 model that simulates scenarios.
Jev Demos & Experiments#community#github#python
Communityavinashsuresh1/semantic-control-systemPython
local-systemone
0GitHub stars
A lightweight self-hosted System 1 decision daemon and MCP server for AI agents and multi-agent swarms: it evaluates state text against typed choice, score and noul questions in one forward pass, with Laya, Ollama and OpenAI-compatible backends.
Jev Agents & MCP#community#github#mcp
Communityaxiomantic/local-systemonePython
system-one
0GitHub stars
A link collection rather than a codebase: babybear-labs gathers Jev architecture reading, Laya alternatives and ports, playgrounds, tiny decision-model projects and apps built on System One decision models, with no README prose beyond the links.
Jev Guides & Articles#community#github#links
Communitybabybear-labs/system-one
SystemOneDecisionsConsole
0GitHub stars
A .NET console application that demonstrates AI-powered decision-making with SystemOne/Decisions APIs through probabilistic forecasting, Bayesian updating, decision framing and model calibration. No README was captured, so details rest on metadata.
Jev Demos & Experiments#community#github#csharp
Communitybartczernicki/SystemOneDecisionsConsoleC#
PoisonPilot
0GitHub stars
A confidence-gated co-pilot for dead-letter queues, powered by TypeSafe Jev: it reads failed webhook, queue and background-job records and produces one of three machine-readable plans, retry, review or dead-letter, without mutating your queue.
Jev Tools & CLIs#community#github#javascript
Communitybetuullm/poison-pilotJavaScript

Start here with the Jev AI model

Hand-picked entries the maintainers recommend first, from official primitives to community tools.

Jev: For the Builders AND Dreamers (Jev 1.14)
The Jev Day release post: Jev 1.14.0 under jev-preview plus three danger-zone features — composable images on both models, the box question type on 1.14 only, and opt-in 262k context.
Jev Guides & ArticlesArticle#official#release#vision
Official
Box Questions (Dreamer-Ready)
The box question type: one bounding box per question, returned as four edges that are fractions of the image, plus confidence, with no criteria field and no not-found value.
Jev Practices & PatternsDocs#official#docs#vision
Official
Jev 1.14 Day 0 Support in LiteLLM
LiteLLM's Day 0 post for TypeSafe Jev 1.14: the proxy adds box questions, image input and long-context mode on both POST /v1/systemone and POST /v1/decisions, forwarding TypeSafe-Danger-Zone headers only to TypeSafe deployments.
Jev Integrations & AdaptersArticle#community#litellm#gateway
Community

Newest Jev AI model resources

The latest additions to the directory, newest first.

From the Jev community

Watch walkthroughs, read the threads, and see what builders are posting.

YouTube: KodeKloud's three-minute primer: what a System One model decides, and why it answers in milliseconds.

YouTube: Caleb Writes Code explains what Jev is and how to call it, in seven minutes.

YouTube: Greg Isenberg and Ryan Vogel on the businesses Jev unlocks, and a path in through the Vercel AI Gateway.

YouTube: CJ from Syntax demos browser use, classification, code review, a model router, and a chat bot with no LLM.

YouTube: Ryan Vogel runs Jev on 100 and then 1,000 emails: category, priority, spam, and reply predictions.

YouTube: AICodeKing tests support routing, refund detection, prompt-injection resistance, and browser automation.

Hacker News: Show HN: Ad Spend Guard gates budget before the auction, not the creative after.

Show HN: Gating ad budget with a decision modelRead the thread on Hacker News

Reddit: Reranking rebooking options with a decision model, ranked with reasons.

Hacker News: Pick Verify: a single decision at the warehouse pick station catches confusable picks.

Show HN: Verifying robot picks with a decision modelRead the thread on Hacker News

Hacker News: Decision Index 0.2.1 scores open reproductions of Jev on a frozen suite.

jackbravo4 pointsDecision Index 0.2.1 – 70 open reproductions of TypeSafe Jev's Decision ModelRead the thread on Hacker News

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 News

Hacker 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 News

Follow @typesafeai

How entries are chosen

Every entry is reviewed against the same bar, whether it comes from TypeSafe or the community.

  • Public and working — no paywalls, sign-up walls, or dead links.
  • Concrete — it has to be about Jev and the System One API, not generic LLM content.
  • Useful today — something a developer can learn from or use right now.
  • Distinct — if a similar entry exists, the description has to say what makes this one different: a different runtime, a cheaper path, a measured result, or a narrower focus.
  • Documented — repos state their license, and docs are in English or carry an English summary.

Spam, affiliate links, and thin AI-generated content are rejected. New entries are expected to ship with a deep dive: two to five highlights, caveats, a quickstart snippet where one helps, and a verification date. Star counts are refreshed when an entry is touched.

Common questions

Short answers about Jev and how this directory works.

What is the Jev AI model?

Jev is TypeSafe AI's first System One model — an AI model that takes a state plus typed questions and returns one structured answer per question: a choice, an ordered score, or the probability of yes, with calibrated confidence on Choice and Score answers. Code can branch on the result without parsing generated text.

What is the difference between Choice, Score, and Noul?

They are the three question primitives. Choice picks one of up to 255 options, Score rates on 2 to 10 ordered levels, and Noul answers yes or no. Choice and Score answers carry a confidence between 0 and 1; a Noul answer is the probability of yes.

Which Jev SDKs and client libraries are available?

TypeSafe maintains official JavaScript/TypeScript and Python SDKs plus a Python adapter. The community has built clients for Go, .NET, PHP, Laravel, Rust, Elixir, Ruby, and Scala, along with framework integrations such as DSPy, LlamaIndex, and Home Assistant. All of them are listed in the Repos & SDKs category.

Is the directory free, and is it affiliated with TypeSafe AI?

The directory is free to browse: every entry is reviewed, and spam, affiliate links, and sign-up walls are rejected. JevDirectory.org is community-run and not affiliated with TypeSafe AI — Jev and System One are TypeSafe AI trademarks.

How often is the directory updated?

Entries are added as new resources appear and re-checked when they are touched. The directory currently holds 3919 entries from 293 source sites, last updated Nov 6, 2026.

What is a verified deep dive?

Most entries include a deep dive: two to five highlight bullets someone would only know from using the resource, a caveats note about limits and requirements, an optional quickstart snippet, and the date the link was last checked. 3919 of the 3919 entries carry one today.

For the canonical details, read the official TypeSafe docs and the API reference.