A FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
TypeSafe AI@typesafeaiOFFICIALTypeSafe announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
x.comJev opens to everyoneExplore this project ↗
Diogo Almeida@CompleteSkepticLAUNCH POSTDiogo 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 AI@typesafeaiOFFICIALTypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
TypeSafe AI@typesafeaiOFFICIALTypeSafe 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.
x.comAnswers your code can useExplore this project ↗Four official signals. A fresh starting point on each visit.
1,198 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Official drop-in TypeSafeClient replacement backed by OpenAI, Anthropic, and compatible LLM APIs, for comparing Jev against chat models.
github.comtypesafe-ai/system-one-adapter-pythonExplore this project ↗Source-linked curation
A developer project exploring decisions using a classifier as a next-token predictor.
github.comerik-dunteman/ChatJevExplore this project ↗Source-linked curation
Pure Jev that can "type" and drive towards task completion.
github.combuluoray/JevOnlyExplore this project ↗Source-linked curation
Jev successfully played and won a match in the game Clash Royale.
Source-linked curation
Jev-powered semantic browser use.
github.comsightmap/jev-turboExplore this project ↗Source-linked curation
Can a System One model steer music? Jev picks the plan (enums only); code renders sheet, audio and MIDI.
Source-linked curation
Marc KöhlbruggeA community tool that filters work-in-progress todos based on semantic meaning, not just keywords.
Source-linked curation
A practical guide explaining the use of TypeSafe’s System One model, providing technical insights for developers.
Source-linked curation
Jido agents use Jev to make moves in Tic Tac Toe, demonstrating Jev's application in game-playing agents.
Source-linked curation
RaZaanA Chrome extension enabling agents to browse and interact with websites, utilizing Jev for decision-making.
Source-linked curation
CLI and agent skill for TypeSafe System One (Jev): typed Choice, Score, and Noul judgments.
github.comgeilt/typesafe-cliExplore this project ↗Source-linked curation
Guillermo Rauch: Jev reviews every fx command, faster and more accurate than a chat model.
x.comVercel fx: Jev as a command safety reviewerExplore this project ↗Source-linked curation
Search the web with TypeSafe's Jev: source selection, query understanding and relevance ranking. Built with Search1API.
github.comsuperagents-lab/jev-searchExplore this project ↗Source-linked curation
Peter WangX timeline labeler. A community post describing a Chrome extension that categorizes X posts into types like engagement bait or promo.
Source-linked curation
A developer project for the agents shelf featuring a local MCP gateway with Jev tool discovery and a dashboard.
Source-linked curation
Type-safe one-decision-per-token decoding engine for autoregressive LLMs, inspired by Jev.
github.comTypeAR-AI/TypeARExplore this project ↗Source-linked curation
A developer project using Jev for plain-language MCP tool calls without an LLM.
Source-linked curation
Marcel PociotMarcel Pociot's browser extension that collapses posts based on a Jev judgment.
Source-linked curation
Preview of fast browser use with Jev and OpenCode's browser CLI.
x.comOpenCode browser use powered by JevExplore this project ↗Source-linked curation
x.comJev is explained in a community post with no detailed technical information.
x.comJev Clearly ExplainedExplore this project ↗Source-linked curation
Hugo DuprezA community reference describing real-time generation of game levels for game development.
Source-linked curation
A small second eval for shadcn-ui/lint that uses TypeSafe's Jev to judge the linter's own output.
github.comblas0/jev-shadcn-lint-evalExplore this project ↗Source-linked curation
Standalone Android agent for Mobilerun where Jev makes every decision, with a live React studio and an Uber demo.
Source-linked curation
Two decision channels on ViZDoom, navigation at 5 Hz and combat at 12 Hz, with an 18-kill test run.
x.comViZDoom Jev agentExplore 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
Decision harness for TypeSafe Jev — confidence gates, shadow mode, recipes, and evals. Claude CLI 48.9s → Jev 1.3s on the same row-filter job.
github.comAntonioCoppe/jev-harnessExplore this project ↗Source-linked curation
Benchmarking Jev (Typesafe.ai) against a strong LLM on the Who&When Pro agent-failure-attribution benchmark (text subset).
github.comTokenTrim/jev-agent-failure-benchmarkExplore this project ↗Source-linked curation
x.comJev is a System One model on OpenRouter that provides decisions with probabilities.
Source-linked curation
Local proxy that picks the Claude model and effort per message using TypeSafe Jev. Routes subagents, leaves your cached main chat alone.
github.comadarshmishra07/jcm-routerExplore this project ↗Source-linked curation
Runnable Jev examples through OpenRouter for immediate implementation.
Source-linked curation
Jev AI performs quality checks on action labels for physical AI training data at high speed.
Source-linked curation
Hosted typesafe-ai/jev for AI SDK evaluate calls, no TypeSafe waitlist required.
vercel.comJev on Vercel AI GatewayExplore this project ↗Source-linked curation
End-to-end Jev-style structured-decision stack for auditable data construction, Qwen3.5-0.8B training, fixed Mind2Web and OOD evaluation, preliminary RLCD, local serving, and interactive replay.
github.comzwliJay/jev-forgeExplore this project ↗Source-linked curation
toksA community post describes using Jev with an LLM to play Doom, exploring multiple future outcomes.
Source-linked curation
A developer project for model routing with caching and failover.
github.comwin4r/pi-jev-routerExplore this project ↗Source-linked curation
A decision cache for TypeSafe Jev-class models — memoize decisions so repeats are free, deterministic, and shareable. One 2 MB binary.
github.comhyperspaceai/jevcacheExplore this project ↗Source-linked curation
Jev controls an Astra planner playing Minecraft in a developer project.
github.comrmalde/minecraft-agentExplore this project ↗Source-linked curation
Malek Ould-OulhadjJev assists a Mac app by selecting relevant support articles from built-in documentation.
Source-linked curation
Unofficial Go SDK for the TypeSafe AI System One API — 1:1 parity with the official JS and Python SDKs. Not affiliated with TypeSafe AI.
github.comvalksor/typesafe-sdk-goExplore this project ↗Source-linked curation
USER + JEV: P(DOOM) PROTOCOL — co-op platform shooter where TypeSafe Jev plays alongside you.
github.comonionminionops-beep/pdoom-protocolExplore this project ↗Source-linked curation
Game where Jev competes against LLMs in Pong.
Source-linked curation
A developer project for the agents shelf, using MCP tool for Codex instead of listing all options.
github.comjackbarunz/jev-tool-routerExplore this project ↗Source-linked curation
A tool that analyzes Tetris board positions and selects optimal placements in under half a second.
Source-linked curation
Helper n8n community node for Jev by TypeSafe. Classify, route, and score text with questions you define, and get a probability for every answer so unsure items can go to review.
github.comvibe-with-me-tools/n8n-nodes-jevExplore this project ↗Source-linked curation
Route tasks to research/code/browser/support/writer agents via TypeSafe Jev.
github.comndolinschi/swarmrouterExplore this project ↗Source-linked curation
Jev (TypeSafe AI) PoC through Game of Thrones.
github.comphureewat29/jev-gotExplore this project ↗Source-linked curation
A tool controlling Ableton Live with concise commands, leveraging Jev's decision-making capabilities.
github.comokinaaudio/live-jevExplore this project ↗Source-linked curation
Measures how well TypeSafe's RLCD-Jev model spots real secret credentials in file snippets.
github.comteyhouse/jev-secret-detectionExplore this project ↗Source-linked curation
A community post discussing a system where Jev acts as a quality gate for drafts, though it faced issues with communication.
Source-linked curation
Shift every LLM call to the cheapest model that can handle it. Routing decided by TypeSafe Jev in ~180 ms. No training data. Policy in plain YAML. TypeScript and Python.
github.comiamvatsalpatel/tiershiftExplore this project ↗Source-linked curation
A YouTube guide discussing Jev's functionality, pricing, and performance comparisons with Astra, including benchmarking and parallel decision analysis.
Source-linked curation
HireSignal — resume first-pass fit+interview via TypeSafe Jev.
github.comndolinschi/hiresignalExplore this project ↗Source-linked curation
t0t0Jev monitors 25 WhatsApp customer groups in real time, alerting an LLM only when urgent issues arise.
x.comWatching 25 customer groups on WhatsAppExplore this project ↗Source-linked curation
Jev decision layer for agents: MCP server, embeddable DecisionModel library, and an escalate-only Claude Code plugin (TypeSafe AI's Jev).
Source-linked curation
Data extraction for systematic reviews, quoted from the papers. Ask a trial report and its supplements your extraction form or a RoB 2, ROBINS-I, QUADAS-2 or TIDieR template; Jev points at the lines, every answer is a verbatim quote with its page, you check it and export the table. Files stay in your browser.
Source-linked curation
Official TypeSafe reference: Knowledge graph entity alignment.
docs.typesafe.aiSTATE → DECISION → CODEExplore this project ↗Source-linked curation
A guide explaining three types of micro decisions used by Jev AI.
Source-linked curation
Semantic test matchers for Vitest and Jest, powered by TypeSafe's Jev model. Write expectations in plain English, get calibrated probabilities back.
github.comrealZachi/jevtestExplore this project ↗Source-linked curation
Classify your inbox with Jev (TypeSafe's System One model) — tag, move, flag, and notify, all config-driven.
github.comparth-kp/jev-mail-classifierExplore this project ↗Source-linked curation
Almond-fastloop: Almond's browser computer-use rig (Chrome DevTools + TypeSafe Jev), and the Browser Use Olympics benchmark it is measured on.
github.comeriestra/almond-fastloopExplore this project ↗Source-linked curation
Grok skill: Jev as a judgment sensor in a builder-agent loop (priors × probabilities → next act).
github.comrainbowpuffpuff/jev-builder-loopExplore this project ↗Source-linked curation
Página do criador Leonardo Bissoli com seu vídeo, capítulos e referências sobre decisões estruturadas com Jev.
leonardobissoli.comJev: decisões estruturadas e casos de usoExplore this project ↗Source-linked curation
A demonstration of Jev competing against OpenJev in a first-person shooter game.
Source-linked curation
.NET SDK for the TypeSafe AI platform.
github.comHawxy/TypeSafeAI.NetExplore this project ↗Source-linked curation
The first general-purpose System One agent for Jev.
github.comrunta-dev/jotExplore this project ↗Source-linked curation
AnshuA project exploring pixel-level image generation through parallel decision-making processes.
Source-linked curation
OpenJev: an independent Jev-inspired System One decision API based on TypeSafe.ai concepts. Choice, score and noul primitives, local mock server, Python and TypeScript SDKs. Real inference planned; not affiliated with TypeSafe AI.
github.comxingwudao/OpenJevExplore this project ↗Source-linked curation
Jev processes 1,000 emails for category, priority, spam, and reply predictions.
Source-linked curation
Jev-powered model routing, memory, compaction, skill selection, computer and browser use for Hermes agents (also Claude Code and Codex).
github.comkerpopule/hermes-jev-skillsExplore this project ↗Source-linked curation
Charts: TypeSafe Jev evaluated on Thai standardized exams vs 110 other models.
github.comvehas/thaiexam-jev-chartsExplore this project ↗Source-linked curation
Skill for Hermes, and other agents, to ask typesafe's jev.
github.comshantanugoel/ask-jev-skillExplore this project ↗Source-linked curation
A tool for calibrating Jev's confidence thresholds, presented as an open-source solution.
Source-linked curation
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