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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.
THE OFFICIAL SIGNAL 4 HIGHLIGHTS
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 announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
JEVLAB ARTTypeSafe 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.
JEVLAB ARTStart with the Launch Post. Explore four official signals.
1,198 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Gregor ZunicGregor Zunic's flight-search demo with a dynamic DOM action space.
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Nailthy TangReal-time virtual try-on experiment using Jev to select and change outfits based on user input and transcript analysis.
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OFFICIAL4 clicks / 7dTypeSafe AIOfficial TypeSafe reference: Introduction.
JEVLAB ARTEnglishSource-linked curation
Browser Use's ultrafast agent: Jev picks the operation and DOM element in one request; a small LLM only writes text when typing is needed.
JEVLAB ARTEnglishSource-linked curation
Faadil ShaikJev controls Super Mario Bros. using fast inference and structured outputs, demonstrating potential for real-time applications.
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Chris TateExperiment combining JSON rendering with Jev to create instant generative user interfaces for rapid component and design system rendering.
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OFFICIAL4 clicks / 7dTypeSafe AIShortest path from an API key to a typed decision.
JEVLAB ARTEnglishSource-linked curation
metr0xSimulation where MOSS picks up litter based on instructions, aiming to improve street cleanliness through automated decision-making.
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Kevin GrajedaClassifier that assesses prompt difficulty in real-time, enabling fast mode for simple prompts to enhance user interaction.
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OFFICIAL4 clicks / 7dTypeSafe AIIntroduction, primitives, patterns, cookbooks, HTTP API, and SDK references.
JEVLAB ARTEnglishSource-linked curation
OFFICIAL4 clicks / 7dTypeSafe AIThe case for machine-native intelligence built for software, not conversation.
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Official TypeSafe server. Builder demos live in the Show and Tell channel.
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OFFICIAL4 clicks / 7dTypeSafe AIPaste a state, add questions, and see typed answers in the browser.
JEVLAB ARTEnglishSource-linked curation
OFFICIAL4 clicks / 7dTypeSafe AISpeculative fan-out, confidence-gated routing, composite scoring, and intent routing.
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Higgsfield AI 🧩Demo showing Jev selecting the most suitable AI models for video and image generation tasks on Higgsfield.
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OFFICIAL4 clicks / 7dTypeSafe AILaunch post: architecture, RLCD training, pricing, Doom and Wikiracing demos, FAQ.
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Claude Code plugin that replaces the compaction summary with Jev decisions: every tool call and result is scored in one fast request, stale ones are dropped or truncated, everything kept stays verbatim.
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OFFICIAL4 clicks / 7dTypeSafe AIChoice, Score, and Noul: the three question types and what they return.
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OFFICIAL4 clicks / 7dTypeSafe AIRequest and response contract for POST /v1/systemone.
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OFFICIAL4 clicks / 7dTypeSafe AIOfficial interactive demo of speculative fan-out: many questions in one call, code keeps the relevant answers.
JEVLAB ARTEnglishSource-linked curation
OFFICIAL4 clicks / 7dTypeSafe AIPublished eval methodology and per-model results for System One workflows.
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Product and research updates.
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Official sync and async Python client. pip install typesafe-sdk.
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A Jev-based query planner optimized Postgres performance, achieving a 12% speed improvement on join order benchmarks through tuning.
JEVLAB ARTEnglishSource-linked curation
OFFICIAL4 clicks / 7dTypeSafe AIKnown failure modes of the current public model, documented by TypeSafe.
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A drone navigation experiment where Jev makes real-time decisions to avoid obstacles in an asteroid field.
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A community project using Jev to control a Tesla Full Self Driving simulator, offering a quick rebuild.
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OFFICIAL4 clicks / 7dTypeSafe AIReproducible recipes: parallel questions, reranking, guardrails, citation checks, extraction, hierarchical classification.
JEVLAB ARTEnglishSource-linked curation
Official drop-in TypeSafeClient replacement backed by OpenAI, Anthropic, and compatible LLM APIs, for comparing Jev against chat models.
JEVLAB ARTEnglishSource-linked curation
Official agent skill for Claude Code, Codex, and compatible agents: primitives, patterns, and how to structure evaluations.
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Public examples of Jev used for robot control, 3D modeling and adjacent control tasks, with sources and archived media.
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Evidence-backed index of real-world Jev (TypeSafe AI System One) use cases: repos, patterns, benchmarks, and measured results.
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OFFICIALTypeSafe AITypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
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Using Jev for real-time control of a robot arm in MuJoCo, with a two-step decision process for actions and movements.
JEVLAB ARTEnglishSource-linked curation
A community post describing a robot arm controlled by Jev, using cameras and decision-making at two decisions per second.
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Riley BrownA real-time tool to analyze and categorize tweets for viral potential.
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Real-time League of Legends win-probability overlay using Jev to analyze game state and predict outcomes.
JEVLAB ARTEnglishSource-linked curation
Daf-jev: composable Python toolkit for TypeSafe's Jev (System One) decision API — question builders, confidence gates, evaluator, calibration, CLI, MCP server, agent skill.
JEVLAB ARTEnglishSource-linked curation
A developer project providing a local MCP server for running pre-made Jev question packs.
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Alan DaitchAgent automates second-hand product search and decision-making. Processes 26 listings per minute with fast evaluation times.
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Justine MooreJev enables natural language search for Zillow listings, classifying properties by non-standard filters.
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John YeoA community post about improving a Slack agent's speed using Jev for faster skill and tool classification.
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KaiA community post about using Jev to efficiently crawl job listings from company websites, significantly reducing time compared to an LLM.
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Jev controls a city's traffic in a simulation project.
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A GitHub project converting agent skills into Oxlint plugins that involve Jev.
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ClineA plugin integrates Jev with a browser in Cline, enabling it to perform web-based tasks through a desktop application.
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Real-time Discord moderation bot: Jev evaluates messages and metadata in parallel to catch phishing, spam, and social engineering with a progressive escalation ladder.
JEVLAB ARTEnglishSource-linked curation
A community post describing a game where Jev routes trains to stations in real time without a solver.
JEVLAB ARTEnglishSource-linked curation
A social media feed optimized using user bookmarks and Jev's analysis.
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Tutorial covers API setup and building prototypes with Jev and LLMs.
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An experiment using Jev to transform simple English into elaborate prose in real-time during writing.
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x.comA community post describes a plugin that manages agent context by analyzing and pruning unnecessary data, available in Spanish.
JEVLAB ARTEspañolSource-linked curation
Hugo DuprezA community reference describing real-time generation of game levels for game development.
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Milind SUtilizes Jev as a decision engine to manage and coordinate multiple bot agents for complex tasks.
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Everton CarneiroA tool that identifies App Store keywords by analyzing competitors and using Jev to filter relevant terms.
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Browser automation where an LLM plans and Jev (Typesafe System One) decides. Library, CLI and MCP server.
JEVLAB ARTEnglishSource-linked curation
Kyle JeongObserve the accessibility tree, Jev chooses the next action, Stagehand executes.
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A livestream analyzing Jev's architecture for JSON-predicting models.
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A developer project that selects applicable rules for Claude, ensuring only relevant information is shown.
JEVLAB ARTEnglishSource-linked curation
Higgsfield AIA process using Jev to filter and select assets, then generate ad creatives with DeepSeek and Higgsfield.
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Chandramouly KandacharJev controls both hands and fingers to play piano in real-time based on visual input.
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AckermanJev rapidly analyzes 700 live ads in 40 seconds for marketing insights at low cost.
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Marketing analytics platform whose feature flag routes brand-visibility classifiers off an LLM and onto Jev boolean decisions.
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toksA community post describes using Jev with an LLM to play Doom, exploring multiple future outcomes.
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A predictive app launcher using Jev to interpret user intent and enhance app discovery.
JEVLAB ARTEnglishSource-linked curation
A developer project offering a Chrome extension to blur low-value LinkedIn posts, collected for the creative shelf.
JEVLAB ARTEnglishSource-linked curation
A community project exploring Jev's potential to evaluate agent progress beyond basic trace data.
JEVLAB ARTEnglishSource-linked curation
A community post describing an autonomous driving system using Jev to process real-time environmental data.
JEVLAB ARTEnglishSource-linked curation
Hamilton UlmerDuckDB extension that classifies rows in CSV, Parquet, or DuckDB tables with Jev, about 10 seconds per 1,000 rows.
JEVLAB ARTEnglishSource-linked curation
A collection of research papers and open reproductions supporting System One models.
JEVLAB ARTEnglishSource-linked curation
Marcel PociotMarcel Pociot's browser extension that collapses posts based on a Jev judgment.
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Max BladeJev plays Subway Surfers at superhuman speed and handles 50 games simultaneously for under a cent.
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4 HIGHLIGHTS
5 clicks / 7d
Tools & apps
Source-linked curation
Creative & growth
LAB PICK
Agents & browsers
Games & real time
Decisions & routing
Devices & robotics
Research & data
Markets & experiments