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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
3,904
Categories
11
Official
102
Community
3,802
Source sites
293
Deep dives
3,904

By format

3904
  • Docs169
  • Repos & sites3095
  • Videos74
  • Posts104
  • Articles384
  • 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 3904 Jev AI model resources

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

Showing 3217–3264 of 3904 resources

goutoujunshi-jev-chat
442GitHub stars
Cross-platform chat copilot that OCRs a visible conversation, has you correct the transcript and speakers, then uses Jev or DeepSeek to pick one of seven reply strategies before drafting replies.
Jev Tools & CLIs#community#jevbest
Communityshengjidaguai-china/goutoujunshi-jev-chatPython
tasksource
224GitHub stars
Standardizes hundreds of public datasets into interchangeable multiple-choice, classification, and token-classification templates, and deterministically recasts them into typed choice, score, and noul decision requests.
Jev Benchmarks & Evaluations#community#jevbest
Communitysileod/tasksourcePython
crush-monitor
309GitHub stars
A local React and Express web app that takes a pasted two-person chat transcript and annotates each message with emotion and intent probabilities plus a grade for your own replies. Chinese interface, your own API key.
Jev Tools & CLIs#community#jevbest
CommunityFerryCorleone/crush-monitorTypeScript
Astra-Ares
309GitHub stars
A source-only preview that builds a separate patched Codex CLI so Jev can raise or lower GPT-6 reasoning effort mid-task and decide how many generations the choice holds. Needs Rust, Node 22 and a native toolchain.
Jev Agents & MCP#community#jevbest
Communitymiuuyy/Astra-AresJavaScript
compact-adviser
218GitHub stars
An agent plugin for Pi, Claude Code, Codex CLI and Grok Build that asks Jev two classification questions to decide whether a session sits at a safe compaction boundary, then hints or compacts for you.
Jev Agents & MCP#community#jevbest
Communitykunchenguid/compact-adviserTypeScript
abide
588GitHub stars
A CLI plus agent hooks that ask Jev one question per rule in your AGENTS.md on every edit or turn and return a probability, so a violating edit gets repaired inside the same turn. Claude Code, Codex, OpenCode, Pi.
Jev Agents & MCP#community#jevbest
Communitycoldteadotai/abideTypeScript
djev-spark
220GitHub stars
A Docker Compose image that serves DiffusionGemma 26B-A4B on a DGX Spark behind Jev's systemone endpoint, adding seven not-yet-upstream vLLM perf branches and dependency-keyed multi-stage question reads.
Jev Models & Reimplementations#community#jevbest
Communitymmastrac/djev-sparkHTML
OmniStudio
202GitHub stars
A Chinese-first desktop workbench for local models whose JEV page runs typed noul, choice and score questions against a local engine or a cloud key, alongside a gateway, RAG knowledge base and shared memory.
Jev Tools & CLIs#community#jevbest
Communitykunpengtalk/OmniStudioTypeScript
beebots
300GitHub stars
Three AI trading bees race each other on OKX perpetual futures. Every decision comes from Jev picking one move from the moves that are legal right now, and every order then passes a risk layer written in plain code. Paper by default, with real market prices.
Jev Demos & Experiments#community#jevbest
Communityimikerussell/beebotsTypeScript
Anna-Agent
147GitHub stars
A local-first desktop agent for macOS that carries work from a conversation through to a reviewable result, split into Home, Cowork and Crew. The part worth a developer's attention is Crew, where Jev suggests an assignee for a single unassigned task and you accept or ignore it.
Jev Agents & MCP#community#jevbest
CommunityFoxtailsss-Andy/Anna-AgentTypeScript
ai-backends
147GitHub stars
A self-hostable API server that fronts text, vision and data endpoints across Ollama, LM Studio, LlamaCpp and a long list of hosted providers, and also runs tool-using agents with sessions. Jev appears separately as a decision provider for typed choice, score and noul questions.
Jev Integrations & Adapters#community#jevbest
Communitydonvito/ai-backendsHTML
imajev
396GitHub stars
Open-weight 2B, 4B and 9B decision models that extend Jev's typed question format to photos, so an image plus a record can be checked against options you supply, with a probability on each and an explicit can't-tell. Runs on your own hardware.
Jev Models & Reimplementations#community#jevbest
Communitymohit67890/imajevPython
convex-evals
130GitHub stars
Convex's own coding evals, plus a separate multiple-choice decision benchmark in the same repo. Jev is wired into the decision side through OpenRouter's alpha decisions endpoint with a pinned version, while the coding evals still route as chat completions.
Jev Benchmarks & Evaluations#community#jevbest
Communityget-convex/convex-evalsTypeScript
arc-cua
320GitHub stars
A macOS action layer that lets a planner hand a bounded desktop subtask to a fast decision model which runs the UI loop, plus a driver you can run on its own. Jev is the default backend but the transport is pluggable, and the planner lives outside the package.
Jev Demos & Experiments#community#jevbest
Communityshhivv/arc-cuaPython
webctl
161GitHub stars
A CLI search wrapper that fans out to up to three providers, dedupes the merged results, has Jev score them for relevance against a stated goal, and optionally scrapes and chunk-filters pages so an agent reads less. Saves context, at the cost of a Jev call per batch.
Jev Demos & Experiments#community#jevbest
Communitydorkitude/webctlGo
laya-ultrafast
259GitHub stars
A clone of browser-use's jev-ultrafast that swaps the hosted Jev decision call for Laya running locally through MLX, keeping the browser agent, action space and executor but making no paid decision API calls. Apple Silicon only.
Jev Models & Reimplementations#community#jevbest
Communityipenywis/laya-ultrafastPython
CLM
3.1kGitHub stars
Contrastive-language-model decision service exposing CLM-8B over a TypeSafe-compatible API: typed Choice, Score and Noul answers plus candidate ranking, with state and action embeddings cached separately so repeat candidates cost one dot product.
Jev Models & Reimplementations#community#jevbest
CommunityContrastive-LM/CLMPython
OpenJev
178GitHub stars
Express and Vite playground for System One-style decisions, taking a state plus typed questions and returning structured answers. Three swappable backends: per-option LLM micro-scorers, one structured JSON call, or a locally served decider model.
Jev Models & Reimplementations#community#jevbest
CommunitySiliconLabAI/OpenJevTypeScript
superterminal
105GitHub stars
GPU-rendered terminal multiplexer whose command palette accepts plain-language queries: Jev scores the visible command, tab and session rows so the intended one rises to the top, while local substring matching still answers every keystroke.
Jev Tools & CLIs#community#jevbest
Communitysonnylazuardi/superterminalRust
jev-engineering-zh
171GitHub stars
Chinese translation and third-party synthesis of TypeSafe founder design notes on building coding agents around Jev, keeping the author's original notes alongside and arguing that KV-cache-era agent design misprices model routing.
Jev Agents & MCP#community#awesomejev
Communityyibie/jev-engineering-zh
jevry
124GitHub stars
Electron desktop browser where Jev picks the next executable action from a page's observed controls while a separate text model plans; deterministic code builds the action space, validates responses, dispatches input and keeps receipts.
Jev Demos & Experiments#community#jevbest
Communitymichaelswissa/jevryTypeScript
332_lab-jev-chat
169GitHub stars
Android and Windows assistant that reads the chat already on your screen through accessibility nodes or OCR, has Jev judge intent, danger level and urgency in one call, ranks three drafted replies, and fills the input box.
Jev Tools & CLIs#community#jevbest#kotlin
CommunityLiyucheng1997/332_lab-jev-chatKotlin
building-with-typesafe-jev
144GitHub stars
Unofficial agent skill that teaches coding agents to design for Jev: typed questions, calibrated confidence, and a short code sketch per pattern, plus links to more than 150 community projects indexed by shape.
Jev Agents & MCP#community#jevbest
Communityaaddrick/building-with-typesafe-jevPython
open-jev-fast
91GitHub stars
A faster inference backend for Open-Jev's local server: same request format and same 27B bf16 weights, but the forward pass is replaced by hand-written CUDA kernels, a prefix tree and CUDA Graphs. Needs an existing Open-Jev install and the model weights.
Jev Demos & Experiments#community#jevbest
Communitylyuyiqi/open-jev-fastCuda
changelog.earth
173GitHub stars
An unofficial changelog for Earth that renders recent reporting as game patch notes. A scheduled GitHub Actions job collects stories, Groq picks headlines for worldwide relevance and writes the patch titles, and the result is committed as saved editions the site, API and RSS read.
Jev Tools & CLIs#community#jevbest
Communitybyalex33/changelog.earthJavaScript
jev-code
117GitHub stars
Stanley is a CLI where you describe a code-review request in plain language and Jev routes it to one of ten bounded workflows. Each workflow is deterministic code that gathers bounded evidence and asks Jev fixed-choice questions per hunk; unmatched requests go to the Pi agent.
Jev Agents & MCP#community#jevbest
Communitydevagrawal09/jev-codeTypeScript
quicksilver
122GitHub stars
A Claude Code skill that moves bulk judgment off Claude and onto Jev. You filter files, classify items, rank candidates or locate lines, and it returns typed verdicts, a shortlist with borderline markers, and a receipt of the tokens Claude did not read.
Jev Agents & MCP#community#jevbest
CommunityUditAkhourii/quicksilverJavaScript
james_library
56GitHub stars
R.A.I.N. Lab is a local-first research environment. Four constrained perspectives investigate a question, quoted spans are checked against a local paper corpus, and experiments are pre-registered with host code, not a model, deciding pass, fail or inconclusive.
Jev Tools & CLIs#community#jevbest
Communitytopherchris420/james_libraryRust
captaincore
75GitHub stars
CaptainCore is a Go CLI built on Cobra that manages WordPress sites over SSH and WP-CLI: Restic backups to B2, git-backed quicksaves, parallel uptime checks, updates with before/after diffs, and a REST plus WebSocket server for remote dispatch.
Jev Agents & MCP#community#jevbest
CommunityCaptainCore/captaincoreGo
prism-liquidity-agent
128GitHub stars
Prism is an autonomous liquidity agent for Solana concentrated liquidity pools, currently Meteora DLMM. Every ten minutes it recalls past outcomes, reads pool state, scores volume authenticity and decides HOLD, REBALANCE, EXIT or ENTER behind a risk gate.
Jev Tools & CLIs#community#jevbest
Communityirfndi/prism-liquidity-agentTypeScript
WindTunnel
88GitHub stars
WindTunnel is a benchmark harness for browser agents. It runs the same tasks on the same self-hosted Docker sites across every interaction mode, WebMCP, code execution, DOM, accessibility tree and screenshots, and scores the resulting application state instead of judging the run.
Jev Practices & Patterns#community#jevbest
Communitynekuda-ai/WindTunnelHTML
total-agent-memory
73GitHub stars
An MCP memory server for coding agents: decisions, fixes and session summaries live in a local SQLite store, and recall fuses BM25, locally computed dense embeddings, fuzzy matching and a knowledge graph.
Jev Agents & MCP#community#jevbest
Communityvbcherepanov/total-agent-memoryPython
jimothy
75GitHub stars
A Node package that distils Jev-style typed answers into small local classifiers, trained either from saved labels or from a Jev teacher, then served in Node or a browser worker.
Jev Demos & Experiments#community#jevbest
CommunityAndrewPrifer/jimothyTypeScript
Jev-Mem
218GitHub stars
Splits agent memory work in two: a lightweight System-One controller routes queries and allocates search budget across four graph views, and a larger model only writes the final answer.
Jev Agents & MCP#community#awesomejev
Communitylibingzheren/Jev-MemPython
Jev-Case
93GitHub stars
An unofficial, Chinese-language static wall of 202 community JEV and TypeSafe cases gathered from public posts, each with author, interaction metrics, a translation and quote links.
Jev Tools & CLIs#community#awesomejev
CommunityHiwoniu/Jev-CaseTypeScript
milvus-model
62GitHub stars
The model-integration layer for the Milvus vector database, shipping adapters for embedding and reranker models from hosted providers, Jev among them, plus local backends.
Jev Integrations & Adapters#community#jevbest
Communitymilvus-io/milvus-modelPython
jmeter-ai
64GitHub stars
Feather Wand, a JMeter plugin adding multi-model chat, an AI CLI terminal and an agent mode that edits your test plan through 21 tools, with optional Jev routing to narrow the toolset.
Jev Agents & MCP#community#jevbest
CommunityQAInsights/jmeter-aiJava
playwright-recast
65GitHub stars
Turns a Playwright trace into a narrated demo video through a chainable pipeline - speed control, subtitles, TTS, click and cursor overlays, zoom - with ffmpeg doing the render.
Jev Demos & Experiments#community#jevbest
CommunityThePatriczek/playwright-recastTypeScript
vllm-jev
625GitHub stars
Serves Jev-style decision checkpoints through vLLM on Linux, with an MLX preview for Apple Silicon, exposing Choice, Noul and Score answers over HTTP.
Jev Integrations & Adapters#community#jevbest
Communitymode-io/vllm-jevPython
weflow-cli
108GitHub stars
Local-first CLI for reading, querying and exporting your own WeChat data on Windows and Linux, with favourites search, Official Account digests, a RAG knowledge base and MCP wiring.
Jev Agents & MCP#community#jevbest
Communityzhuobichen/weflow-cliPython
QuantStudio
90GitHub stars
Open-source workbench for quant research, office work and futures execution, where a JEV workspace watches markets through TypeSafe Jev against simulation accounts.
Jev Tools & CLIs#community#jevbest
Communityquantskills/QuantStudioJavaScript
oxlint-plugin-jev
88GitHub stars
Experimental oxlint plugin that turns plain-English yes/no questions into lint rules, answered by TypeSafe Jev with a probability you threshold.
Jev Agents & MCP#community#jevbest
Communitywobsoriano/oxlint-plugin-jevTypeScript
jegrep
117GitHub stars
Rust CLI that searches a live source tree by describing what you want, returning files and line ranges with calibrated probabilities instead of building an index.
Jev Agents & MCP#community#jevbest
Communitycan1357/jegrepRust
JevEmbed
71GitHub stars
Research toolkit that turns embedding models into Choice, Score and Noul decision models, covering data synthesis, LoRA fine-tuning, serving, benchmarking and a playground.
Jev Demos & Experiments#community#jevbest
CommunityHITsz-TMG/JevEmbedPython
detroit-ai-player
69GitHub stars
Non-commercial research harness that turns a branching narrative into decision-tree JSON so any OpenAI-compatible model, Claude Code or Jev can play it node by node.
Jev Demos & Experiments#community#jevbest
CommunityBaba88611/detroit-ai-playerPython
beam_weaver
64GitHub stars
Elixir library for agents, graph workflows and deep agents, built on OTP supervision with Ecto and ETS boundaries plus adapters and tracing instead of a Python runtime.
Jev Integrations & Adapters#community#jevbest
Communitycaudena/beam_weaverElixir
jev-dataops
63GitHub stars
Self-hosted workbench that screens JSONL or CSV into keep, review and reject partitions, then fine-tunes your own model and reports loss and perplexity on a held-out split.
Jev Practices & Patterns#community#awesomejev
CommunityRenaGao/jev-dataopsPython
JevIntent
69GitHub stars
Chat-host plugin that turns a long press on a message into judgments for intent, emotion, urgency and reply posture, with a per-conversation relationship that changes how the answer reads.
Jev Tools & CLIs#community#jevbest
CommunityNisaka520/JevIntentJava

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 3904 entries from 293 source sites, last updated Nov 5, 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. 3904 of the 3904 entries carry one today.

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