X posts

Nick · Raincoat

@Raincoat_t

7 Jev skills you can reuse in Claude Code and Codex. I open-sourced Jev Skills for anyone building an AI coding harness with TypeSafe's Jev. The reusable pieces: 1. Model router: suggest the smallest suitable model from your available options. 2. Skill picker: find the

Gull

@AgentNeo

Built a city with Jev, for Jevs. One Jev is the architect. Every house it places spawns Jevs who live there. Each of them asks the real Jev model what to do next: sleep, work, eat, wander. 79 Jevs, one API call per tick, ~350 ms, $0.009 total so far. Happiness 0/100, everyone

Jσsh

@JoshKuechly

I asked Jev to predict its own future. My last post (below) got 300k+ impressions, 400+ comments, 101 reposts. I used Jev to categorize every comment and quote to capture public X opinion on Jev’s future. Here’s results: ———— *Note: I created five prediction buckets,

Wilson Lora 🇩🇴

@b0dre

Local AI just beat the API. I built a movie search that runs Laya on my machine and Jev over the API at the same time. Same query. Same posters. Same quality. Local: 392 ms API: 676 ms Hardware: AMD Radeon Pro 5500 XT Then I flipped the toggle: Laya vs Jev deciding the

TheosTT

@TheosTT04

Built a deal-review demo around Jev. It recommends what comes next: approval, more documents, or sales, finance and legal review. One deal can need several teams. Jev maps that out; people still make the call. #Jev #EnterPro #EnterArtifact

Prathamesh

@SirdesaiEXE

i built a cute lil red flag detector with JEV @typesafeai ... 🚩 so that you don't have to fall in traps rate yours: https://t.co/h5FsYOPLsh

Arpit Khandelwal

@ArpitKhandelwa3

Slop Filter for LinkedIn. Jev slams a rubber stamp on every post as you scroll, with its confidence score on the stamp. https://t.co/AIgSUGMCNJ

Benjamin

@bfzli

I built a Tic-Tac-Toe game where you can 1v1 Jev, but you can never beat it because it always makes the correct decisions. Plus, it gives you a head start by letting you go first.

Shubham Giri

@xshubhamg

Built a little battle arena with JEV. Feed it two fighters → give it their stats → hide their portraits → let the model judge the matchup. Batman vs Iron Man was the first victim. JEV: Iron Man, 95%. The arena has spoken.

Visharad

@KashyapVisharad

last time, I made Jev play Clash Royale. this time, I gave it an opponent: Laya, an open-source alternative. Jev runs through @typesafeai's API, while Laya runs locally on my Mac. Each controls a separate emulator and sees only its own game screen. Both use Qwen (via cerebras)

Christopher Lee

@chris_not_busy

I built an ultra-fast medical simulation with Jev and Grok 4.7 Grok 4.7 and I co-doctored a cancer patient across 20+ possible futures in just minutes. Grok proposed the moves. Jev ran the high-speed state decisions < 0.3 secs Patientic visualized the branched outcomes. 🧵👇

WquGuru

@wquguru

JEV is INSANE. So I turned it into a 16-bit game and made a launch trailer for it. That's the whole game: JEV pulls the trigger, another model plans the route. Here's the part I still can't believe. I don't know how to edit videos. The entire 40-second trailer was built by

⃟

@anishfn

i built a text box that turns into whatever(some ui) you type. powered by jev

SkywalkerDarren

@Nu11Speaker

Just launched Feed Lens 🔍 An open-source Chrome extension (store review pending) using Jev to label posts on X, Threads & Weibo. Your labels. Your rules. Your perspective. Try it 👇 https://t.co/XFVtcEkyJY #FeedLens #Jev #TypeSafe #AI

Skrilla

@Skrilla_git

I connected a new AI tool called Jev to my Claude Code agents and now it answers any question about my entire business in seconds Claude Code already runs the whole thing, so this plugs straight into that same workspace you install Jev and it hooks directly into your Claude

rohan chaudhari

@rohan1chaudhari

i spend more time finding a setting than changing it. been trying this with jev from @typesafeai: describe what you need, get the relevant control. wrote up the idea, with a demo and the bits i'm still figuring out:

Vansh Attri

@vanshstwt

Built an AI video clipper that finds the best short-form moments in any YouTube video. Uses Jev, TypeSafe AI's new System One model, to score transcript chunks on hook strength and virality potential in parallel. Code: https://t.co/TDBy4yBPld #buildinpublic #AI #IndieHacker

Siva Surendira

@theAIsailor

We built Jev Lab to help developers play around and understand how and where to use @typesafeai Jev. Jev Lab by @lyzr__ai brings you modules that allow you to play, compare and learn Jev. 1. Playground - edit the state & questions live and see Jev's typed answers instantly, or

Zohaib Tanwir

@zohaibtanwir

Just built this - Jev vs Jev on Samurai Showdown; my childhood game. Seems to work brilliantly so far. Fun's over. Now, on to real world use cases. @typesafeai #jev

syumai

@__syumai

I built a CLI wrapper that gives you semantic "Did you mean?" suggestions when you mistype a subcommand, powered by Jev. git record → suggests: git commit npm add → suggests: npm install Not just typo-distance matching — it understands what you meant.

Youssef

@0xyoussea

How fast is Jev? Can it keep up with Base's 200ms? 👀 I built a demo where you bet against Jev to predict Bitcoin's price the next second No sign up, no need to fund your account. It's all setup for you using account abstraction on Vibenet Try it out: https://t.co/v3bvCmGswu

maxli

@maxlibin

I built a 3D Rubik's cube where the code solves and @typesafe's Jev coaches. Turn it by hand — Jev watches every move, stays quiet while you make progress, warns when break, and steps in with the next algorithm when you're stuck. Open source: https://t.co/p3uoLm5rjP

Jeff Coggshall

@voxmenthe

New code-search tool for agents! (and humans) Naive BM25 + Jev didn't work well enough for the code searches I and my agents were doing, so I built a better one: `code-search-jev`. It works like this: starts with four lexical channels (code, prose, symbol names, paths) to build

Jay Gajera

@Jay_Gajera17

Meet JevPulse ⚡ A real-time YouTube comment consensus engine built on Jev. 1,500+ comments → 10,000+ micro-decisions → Evaluated in parallel → True audience patterns surfaced instantly Try it: https://t.co/wx67JHc6hO

Ankita Tripathi

@ankitatr_

Built a small experiment to understand my chess beyond “blunders” and “accuracy.” https://t.co/vJlJFW03dj games → Stockfish for objective move analysis → Jev for recurring semantic patterns → code for trends and loss/win comparisons. Now the dashboard can show what keeps

Icaro

@Icaro_333

Built a memecoin scanner with Jev — an AI that only decides, never writes. Math filters → on-chain rug check → Jev scores pump potential → guard rails override it. Solana + Robinhood, 24h auto-backtest on every signal. #memecoins #jev #AI

高鹏彬

@pengbingao

I connected Jev to Cesium + my cesium-mcp Bridge SDK. Pick two points in a 3D Tokyo scene and watch it move. Jev chooses routes/actions; local code handles geometry, collisions and movement. Early demo, EN/中文:

Roshan Kumar Sharma

@RoshanK91454999

I built a trivia game you lose by being confident. You answer with a probability, not true/false. Your opponent is Jev, a model trained to output honest probabilities. At the end: your reliability diagram next to the machine's, scored on Brier.

Andy

@andywang

The bookkeeping services industry is dead. This weekend, I built a better solution using Jev from @typesafeai. I fed it 34 months of work a firm charged $20,000+ for. Jev did a better job in 20 seconds, for just $0.32 🤯

Dhruv

@dhruv_ko

1/ Jev has a chess rating now. 1023 Elo. Jev is TypeSafe's "System One" decision model. No search, no planning. You hand it a situation and options, it picks one with a confidence score. Built for routing and classification. Not games. So I built it a chess harness 🧵

Naman Markhedkar

@NamanMarkh11301

Built a scam sms detector using jev https://t.co/dH47rRWM85 Copy-paste the sms and it gives you probability if the sms is a scam or not. :)

Kamal Raj Sekar

@notifykamalraj

I made Jev control a traffic light using 𝘯𝘦𝘢𝘳 𝘳𝘦𝘢𝘭-𝘵𝘪𝘮𝘦 𝘵𝘳𝘢𝘧𝘧𝘪𝘤 𝘧𝘦𝘦𝘥𝘴, obviously a simulation. It cost me less than a cent to run, and the best part was watching it decide to do nothing when it wasn't sure. Wrote an article about it! Link in reply 👇

Álvaro | IA

@AbretuPotencial

I built an autonomous computer on Jev and the first thing it did was LOSE at king of fighters, but then it bounced back and WON we got self-driving cars before self-driving desktops. @sai_borg is the desktop one 🥊 #robosecretary #saifleet

Chirag

@chirag

Saw someone comment here that you can make any local model speak TypeSafe Jev's /v1/systemone - so I built it. llamacpp-jev: typed questions → probabilities, text + vision, in front of an unmodified llama-server.

Wahab Khan

@chaosengineerr

got tired of reply guys.. so i built a chrome extension that stamps them jev by @typesafeai reads every reply and hides the low effort ones want it? thinking of open sourcing it

jem 💜🩵🩷

@sheherenow_

jemo 4: someone was like "jev is cool, I wonder what other old ideas are worth reevaluating?" so i guess i made a 1980s Expert System that runs on lisp + jev??? ¯\_(ツ)_/¯

Luis

@luisf_mc

“Where was that tweet I read yesterday?” I built Seen with Jev from @typesafeai to find it. Press ⇧⌘Space. Type what you remember. Open the saved screen. It works across Mac apps and displays. Jev ranks the results using your own TypeSafe or Vercel AI Gateway key. Local

Margi Shah

@MargiShah_18

I built a tool with Jev + Reddit that finds conversations where my product might actually be useful. The idea was very simple. I wanted to find someone who is already asking for a recommendation or trying to solve a problem, make sure the post itself is recent, and see if I

Jarod Reyes

@jreyesdev

I just built a demo that uses @typesafeai JEV and @sanity_io and it's incredible. No LLM in the query path. The "agent" skips retrieval entirely when it can, and when it can't, it's one-way (no roundtrips). The prose was already written at ingest, so the agent selects an answer

Kevin Ly

@kevinlysocial

I Built a Live AI Director With Jev I’m presenting. AI is choosing whether you see me, my screen, or both. I built a little live director using Jev. My voice is transcribed locally, then Jev uses those words to choose the view while I talk. It switches between the views, but