Projects built with Jev

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Voice-controlled FigmaControlling Figma with voice using Jev from @typesafeai Total cost from first line of code to recording this video: $0.01 🤯mikegee

Every Pac-Man move chosen by JevBuilt a Pacman where every single move is decided by @typesafeai jev 👾 Every tile, Jev gets what is around Pacman and returns a direction, strategy, danger score, flags for trapped, committed, regret. That decision moves the tile. Finally an innovative model after a long time.Nesan Selvan

Atari Pong with one structured questionHad to try Jev on Atari Pong. 🏓 I rewrote one structured question to this classic idea, and Jev went from missing the ball to this: 1 point scored, 0 lost in a 33-second run. Next experiment: can a teacher model improve that question from gameplay experience?Ming-Cheng Ho

Pokémon FireRed Elite Four runJev by @typesafeai is amazing! i let it play pokemon firered, and it was able to beat elite 4 with a party of level 40 pokemons. all under 0.03$Anas Khan

Tetris with typed landing choicesI built Tetris where an AI model makes every move, but it's not an LLM. Jev (TypeSafe's new "decision model") gets a list of legal landings and picks one. ~400ms per move ~1 cent per 100 pieces Can't hallucinate an illegal move, the schema won't let itSteve

Jev-lint finds wiki contradictionsjev-lint put two of my own wiki pages side by side. one says knowledge is compiled once then kept current. the other says it keeps co-evolving. flagged as a possible contradiction, 84%. i decide if it is one. #AIAgents #ObsidianVayun

Painting the Golden Gate Bridgei wanted to paint with Jev 🎨 watch this beautiful painting of the Golden Gate Bridge, powered by Codex(Astra) + Jev + @Stagehanddev + @browserbase (video at 1x speed)Shubhankar

Dungeon guards that change tacticsBuilt a dungeon where Jev controls the NPCs in real time. Watch B switch from pursuit to interception while A keeps chasing. Jev chooses the tactics; local pathfinding keeps the guards moving. Escaped with one heart left.Spencer Zhao

Skill Router for Claude CodeJust hacked a fun little project - Skill Router (Open source) using Claude and Jev @typesafeai Why? I have ~ 90 Claude Code skills installed and use maybe five. The rest are fine, I just forgot they existed, and Claude won't reach for a skill on its own unless you call it. SoLomesh Dutta

MakerMods robot arm in MuJoCoGot @typesafeai Jev driving our @makermodsai Metal arm in MuJoCo. Images are of the sim camera is not passed in, sim hands Jev the state of the environment in JSON and it picks the next bounded action (hover, descend, grasp, lift, place) as a typed choice with a confidenceIsaac Sin

Jev plays Time CrisisAlright. So we know that @typesafeai Jev can fight, but can Jev shoot and avoid getting shot? I had Jev playing one of my favorite arcade shooter, Time Crisis, to test it out. I would say it did pretty well, but it's also because I also gave it a pretty good harness. With oneJack Vinijtrongjit

Multi-stage robotic manipulationHooked up Jev on a multi-stage manipulation task, Jev handles the high-level task transitions and confidence gating at each boundary, while deterministic physics guards manage execution. Congrats @TypeSafeAI, massive step forward for reliable agentic control!Jony Shaik

Nanocode with selective memory compactioni added Jev compaction to a small agent with searchable memory. this is a fork of nanocode with some extra tools to grep a memory.md file + use Jev compaction to remove unnecessary memories.Kyle Jeong

A dual-brain Jev and LLM agentGot access to Jev and wanted to build a proof-of-concept for amazing things it makes possible. I built a Dual-Brain agent pairing System 1 reflexes (Jev) with System 2 deliberation (LLM). In the 8x run below, you can watch both brains firing live: - Jev resolves a multi-clauseLeo Tavares

Real or Fake reality-check experimenthaving so much fun with @typesafeai. here’s Jev doing a little reality check.Rahil

A Bluesky feed with emotion detectionJev demo: A live Bluesky feed with real-time emotion detection and avatars matched to each user’s profile. #jev𝘼𝙈𝘼𝙂𝙄

Jevsume resume feedback#jev from @typesafeai has been fun! So I built jevsume. It burns less than 0.0002$ and less than a second to understand your resume and score it against a set framework! It can also score it against a custom job title that you add. Dropping the repo link & website in comments!Imon Roy

Chrome Dino with live decision scores@typesafeai jev playing chrome dino! the model is incredibly fast! - avg response time: ~280ms - spent 116M tokens - cost? just $4.65. - the input here is a snapshot of the chrome runner - jev decides whether to jump, run or duck with a confidence score repo link if you wantParth

Voice-controlled Mac computer useI built a voice controlled computer-use for my mac using @typesafeai's Jev and it's INSANE how fast it is! I can dictate "open the notes app and create..." and the app opens before I even finish my sentence.Andy Gao

Touchpress mobile end-to-end testingmy mobile e2e testing library powered by @agent_device and AI sdk now supports Jev from @typesafeai Same test, same loop: Jev: 29s, $0.003 Haiku 4.5: 37s, $0.07Robert Soriano

A Three.js driving simulationExperimenting typesafe's Jev api in a three.js driving sim.𝕕𝕖𝕧 / 𝕒𝕔𝕔 | Vlad Rez

Slop Cannon profile analysisAre you a Slop Cannon? Jev knows. - reads your last 200 posts - each post gets stamped SLOP or HUMAN - global leaderboard of certified humans It’s brutally accurateChristopher

Quality checks for physical-AI action labelsJev is insane. We are building egocentric training data for physical AI. Jev QA'd 58,643 action labels in under 3 minutes. 90 cents. A friction cost of the Claude & GPT models.Peter Wang

What toxicity sounds like to JevOkay soooo what if @typesafeai's Jev could 'hear'? here's what Toxicity sounds like according to Jev :it’s rivian

Flagging AI-written X repliesI used Jev to flag AI replies on X. I defined common AI-writing signals as the positive criteria for a Noul question that returns the probability of whether a reply is machine-generated. Things like a "not X, but Y" phrasing or an explanatory framing. And a Chrome extensionIshu Agrawal

Intent-aware search in Replicassmall experiment where I used jev to power the global search in replicas. the possibilities of improving UX with models like jev are endless. we can now have things like: - search that understands what users mean - actions that change based on what you're trying to do - routingSaai Arora

Bannerbear instant field mappingFirst Jev use case published live on Bannerbear! Instant field mapping between template and source, when names are slightly different eg template - photo - name - company_name data source (eg Airtable) - avatar - full_name - business Jev figures it out in one click.Jon Yongfook

Dragon Ball Sparking Zero with Jev@typesafeai’s Jev playing Dragon Ball Sparking Zero. Astra and Fable each write an initial policy for Jev (system 1) to make the real-time decisions. Astra and Fable (system 2) updates the policy as the game progresses.Kariminal

Intelligent ordering for code diffsI tried using Jev as an intelligent ordering tool for diffsJustin Garcia

Jev Trader on Monad and KuruI built a trading bot with Jev! Jev decides if it should "buy" or "sell", given the price feed of an asset pair, and executes real trades. It uses Monad to place the orders on Kuru's on-chain order book in every 300ms block. Demo link →Jarrod Watts

A driving simulator controlled by JevI rebuilt Tesla Full Self Driving with Jev in less than an hour. This model is a total unlock.Justin Schroeder

Real-time voice control for a browserwhoa this actually worked! Jev lets me control my browser in real time with my voice now > i talk > transcript sent to Jev > jev returns probabilities in ~300ms > browser clicks costs: $0.0002 per decision i'm stunned how fast this is. when i asked it to "go back", it evenMoritz Kremb

Fourteen checks for every pull requestgot Jev to review my PRs. ~200x cheaper than Claude and it answers in half a second 6 real PRs in the video. $0.00007 each. 1,000 PRs = 7 cents vs ~$14.50 on Opus 5 paste a diff → ONE call to @typesafeai → 14 typed checks come back as probabilities: hardcoded secret, sqlPaolo Rosson

Classifying 500 emails in secondsYeah Jev by @typesafeai is very cool. It classified 500 emails in seconds. And it costed 3.5 cents.Riley Brown

Natural-language queries inside PostgreSQLI think I just cooked something 🔥 jev(): a PostgreSQL extension that searches your whole database in natural language. No index, no embeddings, just one function. WHERE jev(people, 'could work from home') or WHERE jev(people, 'name sounds european') 129 rows judged in ~1sZachi

An inbox classifier for 1,500 emailsthis model is actually insane at email classification i tested it on 1500 of my own emails to see how well it works and I am blown awayvogel