Projects built with Jev

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An internal-link SEO auditJev is WILD for SEO audit 🤯 in 45.1 seconds it read all 586 pages on my site and rebuilt the internal link map. 584 links placed, 139 pages it refused to link because nothing honestly fit. total cost $0.21. Claude Opus 5, same 586 pages, same clock, got through 21 of them andborja736K views on X

MuJoCo robot-arm controltested Jev as a real-time robotics policy in MuJoCo it struggled at first, so i split each update into two calls: decide what to do next, then decide how to move the arm and gripper Jev doesn’t accept images, it gets simplified geometry and contacts as text hereDmytro Hrybov39.7K views on X

A predictive app launcherAlso been playing with @typesafeai Jev. Insane. A pile of apps suddenly become possible. What a time to be a builder. Sharing experiments here. First one: Keystroke oracle / predictive launcher A normal launcher ranks by aliases, fuzzy match, and habit. Jev reads intent.hityyhz6K views on X

A draft quality gateit's f*cking insane Jev sat between GPT and me, killing every draft that broke my rules before i saw it. good setup. then Jev did not answer. the agent decided silence was safer and stopped sending me anything at all. took a second agent to unstick it. your checker needs aMnimiy17.9K views on X

Manhattan pathfindingCan Jev defeat Dijkstra's or even the Mighty A*? Let's check it out on Manhattan!Shivam Chauhan3.6K views on X

Session replay to bug fixesJEV is INSANE. We gave it 3 million replay events In 40 seconds, it watched 3,247 sessions, caught 132 rage clicks, 116 dead clicks and 95 JavaScript errors, and opened 213 draft PRs to fix them. All for just $2.17. JEV can also flag abandoned forms, rank every issue byTaras98.5K views on X

Jev vs. GLM at chessJev vs GLM 5.3 at chess! Results: ◾ GLM 5.3 won by checkmate in 29 moves ◾ Jev: ~0.3s and <$0.0001 per move ◾ GLM 5.3: ~5.8s and ~$0.008 per move ◾ The whole game cost 24 cents My main takeaway is that it's often useful to use each one to their strengths: ◾ Fast,Hassan38K views on X

Coaching and writing checksAlright playing with Jev through Vercel. 1. quick coaching support during a session rather than running through my gateway. 2. Anti-slop detector and fixer.Kris Puckett1.8K views on X

A Jev query plannerI used Jev to build a query planner! With some tuning, I sped up Postgres queries on the join order benchmark by 12%. Here's what I didMichael Malis14.3K views on X

A logical-fallacy detectorLOGICAL FALLACIES: Next jev tool I'm working on is a @brave extension that gives a probabilistic fallacy score to every post on X timeline in realtime. It also flagged well reasoned, internally consistent + logical posts in green. Was curious to see how Jev would do with this.SmalltownRobot

Instant Clay workflowsJev does in fact work for building @clay workflows instantlyEric Nowoslawski3.7K views on X

Automatic agent and model selectionthanks to @typesafeai jev I no longer have fill out all of those fields on prompt boxes. It picks the agent / model / computer / folder for me. - For a major rewrite it uses Fable + Claude Code. - Changes to an ios app run on one of my macsSawyer Hood10.3K views on X

Incident triage in Box🆕@typesafeai dropped Jev this week, a new frontier model optimized for decisions. We put it to work on an incident triage workflow in Box. Jev doesn't generate text. You send it state plus typed questions and it returns booleans with probabilities, enums, and scores in a singleBox80.6K views on X

MakerMapnow finds the makers you should meet, near you 🤯 it's crazy accurate and built with Jev by @typesafeai my #1 match was @martbln_dev funnily enough we were DMing about meeting up yesterday 😂 find yours 👉Martijn Verbove1.3K views on X

Jev plays BalatroJev from @typesafeai plays @BalatroGame. Every hand it sees the cards, jokers, and blind, then picks play or discard in ~200–500ms. After the ante, it shops too. A full run costs less than a cent.Juris31.6K views on X

A faster Slack agentJev made our Slack agent 2x faster ⚡️ Our agent can be quite slow because it needs to read skills and figure out which tools to call. We used @typesafeai's new model to speed this up by first passing it the prompt and classifying the best skill, tool and params to use beforeJohn Yeo34.2K views on X

Jev compaction for OMPIf you use omp, you're missing out on jev based compaction It helps your agent optimize token usage with 30 to 55% less context. $0.0005 a pass What it does: - Scores every old tool output with Jev - Keeps what's needed - Parks the rest on disk - Remembers its decisions soJerry the Martian1.2K views on X

Voice intent to tool callsPlayed around with @typesafeai Jev today, mostly to understand what it does for tool calling. Instead of an LLM deciding what to do, I substituted that part with Jev. My learning is that we will be able to make the agent act before the user finishes the sentence. So far,Pratim Bhosale110.9K views on X

Jev ReviewerIntroducing Jev Reviewer, a tool designed for systematic reviewers to quickly find and extract the information from research articles. App: GitHub:Ahmad Sofi-Mahmudi22.5K views on X

A plain-English logic interpreterJev can't reason. So I built an interpreter that reasons for it. It runs a logic language where the facts and rules are plain English.Shawn Simister38.9K views on X

A Tetris placement pickerTypeSafe's Jev plays Tetris better than me!! We hooked it up to a Tetris game. Every piece, it looks at the board and all the spots the piece could land, and picks one in about half a second. A whole game cost us less than half a cent. Their price is $0.042 per million tokensZiwen1.3K views on X

YouWare résumé screenerJEV is Awsome!!! 😎 360 resumes Screened in 24.2s — $0.0212. Typed scores. Shortlist signals. Speed + cost your boss will quietly love. I Open-sourced the resume screener on YouWare. Reply “JEV” to try it. We’re bringing JEV to YouWare soon — smoother builds, moreYouWare4K views on X

Supabase RLS linter@typesafeai Jev is FREAKING SICK!! Playing around with it to create an experimental RLS Linter for @supabase. You can check it out here: or view the demo 📺Ali Waseem20.7K views on X

Job and candidate matchingJEV is INSANE. We gave it 400 companies and one candidate profile. In 12 seconds, it predicted which jobs the candidate had the highest chance of getting, assigned a confidence score and detected job-candidate mismatches. All for just $0.0005 It can also scoreSarvagya Kulshreshtha146.7K views on X

A page-by-page OCR routerDoc-OCR router using Jev @typesafeai A Jev-powered router that looks at a PDF page by page, decides which pages actually need OCR, extracts the rest locally. Result: save cost on # OCR pages + speedMisbah Syed26.1K views on X

A real-time feed quality filterMade a real-time slop detector with jev as you scrollRobin Bilgil693.6K views on X

Search a physical libraryJev lets me search my physical library by looking at the entire book index in parallel in 300ms. Here, the answer to “Who invented photography?” is probably on page 98 under "Niépce, Joseph Nicéphore"Seth Thompson11.2K views on X

Tax document classificationBuilt a tax document classifier with Jev. We ingest thousands of tax documents using an LLM pipeline I built last tax season. I read multiple articles as late as April this year claiming AI fails at tax document classification. Wasn't the case back then, and it's proved wrongNakshatra Saxena234.8K views on X

Jev controls a simulated flyI made Jev control The Flykhaled1.7K views on X

A typed trading-rule experimentSo here’s what I built. A simple TSLA / 50-day MA rule, with @typesafeai’s Jev sitting in the judgement layer. Real API calls. Typed answers. My code decides the action. Facts + Judgement = Action. Just an experiment. Public code below.Matt50.4K views on X

An offline research decision gategot early access to @TypeSafeAI (Jev). in my last post on autoresearch vs dream-rsi, the quiet bottleneck was: how do you score 28+ dreamt tree branches offline without waiting minutes on chat LLMs? tested Jev as the sub-100ms offline decision gate: left: linearOtto🐾

Switch between manual and AI playHad some fun taking Jev from @typesafeai for a spin, switching seamlessly between manual and AI-driven gameplay. It’s clocking 2–3 calls/sec at 60 FPS, with ~150ms avg latency. The most interesting part wasn’t the speed, though. It was distilling the game into the variables,Adrián Mato 🐙2K views on X

Ego Lite shopping decisionsego lite + Jev + DeepSeek Flash = stupid fast. ⚡ 3.71s for 20 Amazon product decisions. GPT-5.6 Sol: 54.45s Same task. Same result. 10/10 on both. Less reasoning. Faster decisions. 1× speed.ego60.8K views on X

A Tetris agentok, I got Jev to play Tetris and this is cool asfMarcelo Mendes2K views on X

JevalsI wanted an easier way to test my jev requests and see if my results are improving, so I built jevals! It's a local workbench for testng the Noul, Choice, and Score primitives. You can mix requests as well. You can run a seed command to see and play with some of the examples inNick DeJesus 🛒🎉 - Former Unpaid CTO @BTPipeline1.7K views on X

A Jev Magic 8 BallEveryone’s talking about Jev, so I made a slightly silly way to try it. A Magic 8 Ball that returns 1 of 20 answers. My $4 in API credits should cover ~300,000 questions. Please help yourselves!William Prout4.5K views on X