Community showcases dozens of Jev use cases across games, forms, and developer tools

Skip to projects Projects built with Jev359Jev plays Catanwanted to see what happens when a few Jevs play Catan so I forked...after a while the Jevs just refuse to negotiate with each other and end up doing nothing on their turns 😭 really fun model to play around with!! @typesafeai awesome idea to try jev with games @Vtrivedy10SachinAsk JevAsk Jev anything. Give it a try at It won't answer. It will judge. Let's see if we can get to 1 million questions. @typesafeai 🤝 @convex work great together. @hmartenjoyer @CompleteSkeptic @justKDeng @mikeyseeWayne SuttonJevFormintroducing JevForm, a form that dynamically branches and chooses what to ask next usinng @typesafeai’s Jev in my life i’ve made hundreds of forms with crazy if/then logic. Jev solves it. built with @vercel json-render (by @ctatedev), so theoretically it can support anyTamirtraffic-guardBaked traffic-guard: an offline bot gate for reverse proxies with zero dependencies. Uses wire-order header checks, stateless HMAC tokens, and exploit patterns. Blocks scrapers & attacks without breaking real users. Demo: Indeed you can plug jev :-)Hemanth.HMTC39 AtlasFor years I wanted to classify @TC39 proposals to spot common patterns. Using @typesafeai's Jev, I evaluated 324 proposals across 9 dimensions in 12.7s (~25.5 proposals/sec)! #tc39 #javascript #aiHemanth.HMpkg-gateSo, I baked pkg-gate with @typesafeai! npm lifecycle scripts can run arbitrary code on install. pkg-gate: a ~100ms pre-install gate using Jev 4 typed primitives: - Choice: intent - Score: severity - Nouls: exfil & curl-to-bash $ npx pkg-gate <pkg> #node #npm #securityHemanth.HMjev-codesHey Everyone, Just Built : Audit your git diff against YAML coding-standards packs using TypeSafe's Jev model, from a CLI or your AI agent's command/skill. 1 step install: npx @kushwho/jev-codes Evals are in the repo♥️. Happy building!Kushal Agarwal Jev SearchBuilt Jev Search -- free and open source, powered by @typesafeai Jev and @search1api_dev search API. Ask in plain language. Jev picks where to search and ranks what comes back. Try it now: On-demand UI flow captureI've wanted this for ages and it's finally possible now with Jev by @typesafeai Imagine Mobbin, but it grabs fresh flows for whatever you’re looking for Browser use has always been to slow to pull this off properly. Jev + browser use are insanely quick now I had a lot ofomar ✌️Find in page by meaningctrl-f has never understood a single query. It matches strings. This one scores meaning: every sentence on the page gets a probability with @typesafeai's Jev, and walks you through the hits. Searching 'exciting' here: 12 matches. Plain ctrl-f finds zero.Jiayao Yurtrvr.ai with JevJev is now live on @rtrvrai , our free browser agent. No API key needed. With Jev enabled, our recorded tasks took about 40% less time. Your fastest browser agent got even faster. We paired this new System One model with our Open Source LLMs. The LLM plans and writes the code.Bhavani KalisettyMagic Jev BallI made a Magic Jev Ball for code reviews 🎱 Click it on any GitHub PR and ask: "should I approve this?" It checks CI, diff size, and reviews, then lets @typesafeai Jev decide your fate in ~200 ms No more thinking. Just shaking.AnushaA Jev code-review gateJev is your code review that costs nothing and never talks I spent a week trying to get a large model to gate its own output. It can't. It's the thing doing the writing. Jev is the opposite. It never writes anything. That's exactly what makes it useful. JevKunal JainJev Chess MasterIntroducing Jev Chess Master, a realtime online chess game leveraging the power of pure System One AI models. You play White. @TypeSafeAI’s Jev plays Black. Explore Jev's decision making traces in realtime with API cost tracked. 🕹️ Try it live: BYOK.Leo LouTypeahead UI"Typeahead UI" with Jez by @typesafeai If you watch closely it already knows what to update before I am even done typing it.mikegeeA faster browser agentBreaking: Browser Use + Jev = Ultrafast ⚡ Findings flights took 7s and cost only $0.0039 🤯 > new action space every step > DOM state space > small LLM fallback to type (this video is at 1x speed btw) Built a tiny open source browser agent. try it below ↓Gregor ZunicSpreadsheets that read intentAnother crazy @typesafeai Jev example: Predictive spreadsheets Spreadsheets recalculate numbers, not meaning. Jev reads intent. Type "Urgency" at the top of a column and, as you type, it figures out you want each row rated from "no follow-up needed" to "urgent" in ~100 ms.nader dabitInstant context compactionfound the perfect use case for @typesafeai Jev: instant compaction in 2026, why is compaction still a summarization prompt? Jev can make it instant by scoring every tool call and dropping what’s irrelevanttamaraAn ad blocker with judgmentI build an undetectable realtime adblocker extension with typesafe It checks every dom element and classifies as ad/non-ad and removes it if true Extremely fun to work with, expecting an incredible shift in how AI is being used in the futureZachiSearch your inbox by intentJev is really good at intent-based search! How it looks in Gmail: (for a huge inbox you'd prob let semantic search / embeddings pull first but still much better experience)nader dabitTurning signals into decisionsFor those who still didn't understand what Jev from @typesafeai can do, here is the example. Jev can read dozens of structured trading signals and then show intelligent decisions. It's time to make your system actually alive. What a time!trouA city on a whaleJev x GPT-6 Astra x H3 Max I created a complex decision making game with Astra. It is about keeping the city on a whale alive with decisions. - GPT 6 Astra designed the world - Jev chose the actions - H3 Max Turbo on fal turned one decision from each round into video All ofgokaygokayHiggsfield model routingJev + Higgsfield = solved auto-routing for genAI models. In this demo, @typesafeai’s Jev evaluates prompt and picks the most fit models for video and image generations on Higgsfield.Higgsfield AI 🧩OpenCode plays TetrisJev + OpenCode + Browser Harness + Sanbox = 🔥 Watch how OpenCode + browser harness visit a tetris game website, read the control instructions, use gpt-6 to build a game controller for Jev model, and then hand off to play the game. This is all a single shot prompt with noTanay SoniThe tactical sentinelI built a game were you play against a sentinel in two modes: 1. Default: Sentinel runs a fixed chain of if/else rules. It follows every one of them and still wanders the map looking for me. 2. JEV Live: hands the Sentinel's tactical call to JEV. -> It went and covered the exit.AdiYour SignalI got tired of choosing between X's firehose and someone else's idea of relevance, so I built Your Signal. It uses @typesafeai's Jev to score posts already on screen, then applies my rules locally. Reversible, BYOK, no telemetry, open source.Fabio Angela Cambium Jev integrationJev @typesafeai is now supported in Cambium as a first-class provider. Keep in code what can be in code. Strict typing. IR and json trace output on every run, as always. Great way to build training data using AI for what you already use it for. Generation engineering is fun! MappityThe app is open source btw. You can play online with few prerecorded responses from Jev in the interactive demo, or you can grab the sources and run it locally with real data. Made with Jev?Send an X post for review. Approved projects join the collection.