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X Posts

Jev ideas, experiments, and videos shared on X. Selected longer X videos also appear in Videos.

242 X posts
X Post · Games

Jev Codenames

A playable Codenames experiment puts Jev in the game; the public post does not show the call.

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X Post · Games · Experiments

Jev Doom Multiverse

A Doom agent tries parallel futures from one checkpoint, compares outcomes, and continues from the best branch.

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X Post · Experiments

JevForm

A form changes its next question dynamically instead of relying on a large fixed if/then tree.

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X Post · Games · Experiments

Jev Catan Bots

Several Jev-controlled players attempt to play and negotiate in a forked Catan game.

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X Post · Games

Whale City Jev Game

A story game keeps a city on a whale alive through Jev-selected actions and generated video scenes.

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X Post · Experiments

MOSS Jev Rover

A rover simulation changes litter-picking targets when its instruction changes from cans to bottles.

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X Post · Agent tooling

Jev Prompt Difficulty

A prompt composer classifies task difficulty when the user finishes typing and offers a faster mode for simple requests.

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X Post · Creative

Mutuals Jev Character

A 3D character reacts during conversation with live choices for its face, gaze, and body.

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X Post5:44

A creator demonstrates Jev and Treg across fraud screening, sales-signal triage and viral-content monitoring; reported savings are creator claims.

Jason Zhou
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X Post · Data & analysis

Jev Semantic Find

A Chrome-extension demonstration uses Jev for intent-based find on a page.

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X Post1:02

An explanation of state inputs, questions and structured outputs, including yes/no, choice and score examples.

Ben Dicken
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X Post2:09

Seth Kimmel demonstrates an open-source CLI that uses GEPA to calibrate Jev to decision criteria.

Seth Kimmel
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X Post36:14

A shared technical talk about Jev and decision-focused models, featuring TypeSafe founder Diogo Almeida.

Codez
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X Post11:05

A long-form X video discusses Jev and its role as a fast typed-decision model.

Matthew Berman
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X Post0:49

Eugene Cheah introduces SimpleJev, an open-source library and API for adapting Hugging Face models to Jev-style structured decision tasks, including vision inputs.

Eugene Cheah
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X Post · Experiments

723 ads, 30 personas, 22 cents

jev KILLED the focus group. it scrolled 723 ads as 30 buyer personalities 21,690 stop or scroll decisions. 22 cents. (will be avail in @StealAds + mcp)

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X Post17:33

A recorded talk by Jev founder Diogo Almeida covers the model's decision-oriented design, RLCD training approach, and the team's view of where it fits alongside generative assistants.

Diogo Almeida (shared by Codez)
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X Post · Agent tooling

A usage router for Grok Bot

Jev + GrokBot is the best AI agent system I’ve built in my life It just made my setup CHEAPER and FASTER than what 95% of people are running... setup takes literally 7 minutes: prompt → GrokBot → Jev decision → GrokBot execution → result step 1 → open @typesafeai , create API key (keep it off chat paste) step 2 → tell…

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X Post22:41

Moritz Kremb explains Jev, walks through API setup, and demonstrates voice-browser, memory, and YouTube-prediction applications.

Moritz Kremb
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X Post · Experiments

Jevassembler

An experimental terminal demo asks Jev to choose the next CPU-style instruction for a task at runtime.

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X Post0:44

Zachi demonstrates a PostgreSQL extension that uses Jev to judge natural-language conditions across database rows without a vector index.

Zachi
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OpenRouter’s Ori Eval preview
X Post · Experiments

OpenRouter’s Ori Eval

1/ Jev, a decision model by @typesafeai, sparked a burst of projects and discussion. We tested it using Ori Eval against popular LLMs on OpenRouter at judging. Jev was >5x faster than the next fastest model, and even its slowest requests beat every other model's median.

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X Post · Creative

Drape Jev Try-on

A Drape experiment uses Jev decisions to drive a virtual outfit-selection interface.

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X Post · Data & analysis

Seven more SEO and GEO workflows

Jev killed 7 more SEO/GEO workflows 👇 1/ Assess which competitor pages to copy -> It scores every competitor page on answer, depth, proof and freshness, then checks its rank in Google and ChatGPT to show which ones are worth copying 2/ Identify which page elements to change to get cited -> It reads the title, meta…

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X Post · Data & analysis

Filtering WIP todos by meaning

Using Jev to filter through my @wip todos It allows me to super quickly find all the instances where I increased revenue, got stuck, switched to a different SaaS provider, etc Things a regular keyword search would never catch

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X Post · Data & analysis

Natural-language search over Zillow

Jev can serve as better natural language search on websites. It can scan thousands of Zillow listings and classify properties by things you can't normally filter for - e.g. architecture, renovation status, proximity to freeways. This was done in <20 sec and costs $0.18 👇

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X Post · Creative

Jev for content marketing

today i'm releasing Jev for content marketing. still doomscrolling to figure out what to post on social media? that's over now... Jev watches EVERY video in your niche and judges it before it ever reaches you: 1. research: pulls every video in your niche from a database of 12.8M viral videos 2. analyze: Jev watches…

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X Post · Data & analysis · Experiments

100,000 viral posts in 20.4 seconds

I just built a Jev X Viral Post Analyser. 100,000 viral X posts. 20.4 seconds. $0.67. Claude Opus 5, same corpus, same clock, got through 214 posts and spent $0.98. per post that is ~680x cheaper the full Opus pass would have run $458. viral analysis is the perfect Jev job. • it is not writing, it is 14 yes/no calls…

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X Post · Agent tooling

Launching agents on a canvas

Jev brought us closer to JARVIS it instantly does things like launch agents on a canvas - without awkawardly waiting for slowGPT LLM loop @clonkapp is now the fastest agent orchestrator on the planet

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X Post · Data & analysis

Which exam questions come back

JEV IS INSANE. I gave it 80 real exam questions and 297 practice ones. In 80 seconds, it told me which ones are most likely to appear on the real exam and which ones aren’t. All for $0.0256. Can't stop playing with @typesafeai 😁

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X Post · Browser & computer use

Jev SEO and GEO Audit

A creator reports using Jev in a client-site audit workflow; claimed savings and output quality have not been independently reproduced.

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X Post · Experiments

Jev Accounting Prototype

A creator-posted accounting prototype connects the Jev API to a mock interface.

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X Post · Data & analysis

1,315 posts across eight dimensions

Jev classified 1,315 X posts for about $0.086 in estimated model cost 😂 seeing everyone's Jev demos made me want to build something for my own content research. i'd collected a lot of posts, but figuring out what they had in common still meant opening them one by one and taking notes. so i built a dashboard around…

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X Post · Data & analysis

A shortlist from a competitor swipe file

JEV makes competitor research feel like a cheat code. Give it your competitors’ ads. Break them down by hook, angle, offer and format. Then turn recurring combinations into a shortlist for your next creative test. From an endless swipe file to “here’s what we should try next.” Your competitors just became your…

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X Post · Experiments

deepseek-v4.1-flash-jev

you can make any open source model behave like jev with just a bit of inference engineering. it's shockingly easy. to prove it, we built a new endpoint we're calling deepseek-v4.1-flash-jev. see the demo below. here's how it's done: sglang (an inference engine) offers a scoring endpoint in addition to the normal…

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X Post · Experiments

Jev against Fable 5.1, 100 builders

Jev is INSANE. I asked 100 Indie Hackers to build a post scheduler with: Jev vs Fable 5.1. The results are unexpected 🤯 (You can clearly see Jev is faster at doing stuff)

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X Post · Experiments

Jev Calculator

A real-time calculator demo sends changing interface state to Jev and displays the returned decisions as immediate results.

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X Post · Experiments

A dual-arm robot with Jev in the middle layer

型付き意思決定AIモデル「Jev」で双腕ロボを動かした結果まとめてみた🦾 3層制御のうち意思決定（2層）をJevに任せ、IKや物理計算はコード側に分離する構造を作りました。500msの応答と0.5円/試行で早くて激安。

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X Post · Agent tooling

SEO and GEO fixes, 90% cheaper

Jev dropped the price of SEO/GEO fixes by 90% Agents that audit and fix a client's SEO/GEO used to cost us ~$250 Here's where the savings come from: 1/ 30x faster reads of Search Console and PostHog/Mixpanel data 2/ 30x faster checks of what ChatGPT searches on Bing 3/ 30x faster modeling of what users ask Gemini and…

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X Post · Data & analysis

talkr

today i built talkr, a speech analyzer using @typesafeai > talkr gives you a topic > you talk about it for 30s > jev analyzes your speech: pauses, filler words, repetitions, confidence, clarity > you get a score and feedback to improve can’t wait to 10x my speaking skills

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X Post · Workflows

Lurk

everyone's making demos with Jev but nobody is making real products introducing find and monitor reddit threads to get cited by AI > FREE > 4000 reddit threads scanned > email, discord, slack only possible to give for free bc of Jev & @getanyapi

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X Post · Creative

Both hands on a piano, in real time

@typesafeai's Jev controls the 2 hands and each finger to play the piano in real-time. Jev only "sees" what we see and plays this from the "note waterfall". It uses @browser_use's jev-ultrafast and some decision scheduling to make this happen in real-time. Sound on 🔈🔉🔊

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X Post · Data & analysis

App Store keywords from the real competition

I built a tool that finds App Store keywords by reading the competition, and uses Jev to judge them. What it actually does: 1. Turns the app's own listing into a handful of search queries, with Jev filtering out the ones nobody would type. 2. Runs those searches on the App Store. Whatever ranks is the candidate pool.…

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X Post · Browser & computer use

jev-browser in Cline

We built a plugin that gives Jev a browser in Cline, and have been blown away by the results. 1. Install it in our new desktop app: Customize > Marketplace > Plugins > search 'jev-browser' 2. Create a Vercel AI Gateway API key, then save it to ~/.cline/plugins/cline-jev-browser.config.json as {"gateway": {"apiKey"…

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X Post · Experiments

Sorting 63,000 emails

WOW 🤯 i just used Jev + @agnt_gg to categorize 63,045 emails in less than 3 minutes for < $1 total runtime: 2 minutes 54 seconds input tokens: 23,430,692 output tokens: 4,528,206 total tokens: 27,958,898 estimated cost: $0.9841 this would have been hundreds $$$ in LLM costs

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X Post · Browser & computer use

Hipershopping with Agentcard

breaking: Agentcard + Jev + Kernel = Hipershopping ⚡ asking an agent to go buy stuff for you online is usually: - expensive (bc of tokens going back and forth) - slow (bc of tokens going back and forth) - unsafe (bc there's no safe/compliant way to share card info w/agents) but now, any consumer agent platform can ask…

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X Post · Agent tooling

AgentRun reusable workflows

Today I’m excited to show you our new harness called AgentRun, built with @pidotdev and @typesafeai's Jev. It’s built for an agent to learn how to do a job, code itself a general solution, and then get out of the way.

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X Post · Creative

Pixel art with a sketch-and-refine loop

I gave Jev the ability to draw pixel art! It uses deepseek to plan a sketch with some primitives, then renders it, refines it, all based on pixel positions and colors. Long way to go but it's pretty neat.

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X Post · Games · Experiments

Byte predicts rock-paper-scissors

Can Jev read a human? Play rock paper scissors against Byte. Every round he predicts your next throw before you make it, then plays against that read. His move is committed before you pick, so he can't change it after. Stakes settle over Ark. Try it 👇

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X Post · Games · Experiments

Jev beats Super Mario Bros

Jev beat Super Mario Bros. Every moment, the simulator returns structured data of the game's current state, such as Mario's position, nearby enemies, and terrain, and simulates possible actions like jumping and running. Jev returns a probability distribution for the next chosen action based on its criteria of staying…

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X Post · Experiments

JSON Render with Jev

An experiment combines json-render with Jev for responsive generated interfaces.

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X Post · Experiments

An internal-link SEO audit

Jev 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 and spent $1.43. per page that is ~190x…

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X Post · Experiments

MuJoCo robot-arm control

tested 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 here

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X Post · Experiments

A predictive app launcher

Also 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. Type “the pdf I just downloaded” and the newest…

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X Post · Agent tooling

A draft quality gate

it'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 a branch for the moment it goes quiet: > let it…

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X Post · Experiments

Session replay to bug fixes

JEV 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 by severity, count how many sessions each bug hit…

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X Post · Experiments

Jev vs. GLM at chess

Jev 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, well-defined classification → specialized models like…

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X Post · Agent tooling

Coaching and writing checks

Alright playing with Jev through Vercel. 1. quick coaching support during a session rather than running through my gateway. 2. Anti-slop detector and fixer.

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X Post · Experiments

A Jev query planner

I 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 did

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X Post · Agent tooling

A prompt box that fills itself in

thanks 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 macs

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X Post · Workflows

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 single pass, so there's no output to parse and…

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X Post · Games · Experiments

Jev plays Balatro

Jev 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.

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X Post · Agent tooling

A Slack agent, twice as fast

Jev 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 before handing it to the agent

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X Post · Experiments · Agent tooling

Voice intent to tool calls

Played 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, we've used different LLM combinations…

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X Post · Experiments

A plain-English logic interpreter

Jev 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.

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X Post · Games

A Tetris placement picker

TypeSafe'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 tokens in, and output is free. The speed and the…

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X Post · Data & analysis

YouWare résumé screener

JEV 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, more possibilities. Got a wild idea? Come explore with us.…

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X Post · Experiments

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 📺

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X Post · Data & analysis

400 companies matched to one candidate

JEV 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 score companies, analyse your experience, match you with the…

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X Post · Agent tooling

A page-by-page OCR router

Doc-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 + speed

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X Post · Data & analysis

Search a physical library

Jev 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"

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X Post · Games

Switch between manual and AI play

Had 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, actions, and decision criteria the AI needs…

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X Post · Experiments

Ego Lite shopping decisions

ego 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.

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X Post · Experiments

Jevals

I 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 in the @typesafeai Made a quick demo video…

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An always-on assistant with no wake word

Ai is evolving. Jev can be armed at all times. I can speak freely and it knows ( from probabilities ) if im asking my computer to do something or blaberring away at something else. no wake word. speed + affordability + intelligence is getting to the point where an always on ambient jarvis style assistant is possible.…

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X Post · Games · Experiments

Connect Four on Omarchy

We put Jev inside OmarchyLinux @dhh to play Connect Four. It reads the board, chooses a move, watches the opponent respond, then Hermes reviews the result and tries again. 6,499 model tokens. Cost: $0.00022113. This is what structured state + real-time decision loops look like. The whole loop runs inside Aria.

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X Post · Workflows

Jev on Sol

GM Jev V1 is live on Here's what's new: TRADE • Paste any Solana CA and get a live chart with Jev watching it with you • Jev re-reads the token every 5 seconds: the call, where price is in 15 minutes, buyers in control, dump risk, alive in a week, heat • Every change in the call is marked on the candle it happened on…

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X Post · Agent tooling

Corent model routing

Corent’s brain uses @typesafeai Jev now. Not to generate the output, to make the decision before the output gets generated. When a request comes into Corent, you don’t need to tell us which model to use. You send the prompt, the workload and the quality level. Then Jev helps us decide what that request actually needs…

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X Post · Data & analysis

Jevinik

JEVINIK - Evaluating stocks insanely fast with @typesafeai's Jev It pulls market data, signals, risk & filings around any stock, then calls the next 30 days: 🐂 BULLISH 🐻 BEARISH No LLMs. No vibes. Just Jev & @ValyuOfficial rich financial data 📈 🔗

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X Post · Creative

Jev plays piano

Jev playing the piano. I gave it the key, all 88 notes to choose from and the sequence so far. Did chords in a second pass once we had the melody by giving it the bar's notes & 7 chords to choose from. Plays it safe & loves alternating between G and A but with some lessons, it might get there.

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A real-time orchestra conductor

Jev is so cool! I just made Jev conduct a musical orchestra in REAL time My entire TL was filled with Jev demos so decided to give it a spin and needless to say, I was not dissapointed.

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X Post · Experiments

A 6502 emulator experiment

Yes yes, Jev can drive, Jev can be a programming language... but lets just skip the middle man ... Jev be the "computer" !!! Motorola 6502 emulation directly on Jev 🤣😅 @typesafeai @dotpem Took a bit "hill-climbing to figure out how to instruct and the data shape, but now it runs whole (very) short programs. As you can…

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Youform voice builder

Used Jev to build voice builder in Youform. It is so fast!

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A fancy-prose experiment

let Jev automatically transmogrify your simpleton English into unnecessarily fancy prose as you're writing it 😅

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X Post · Data & analysis

News matching for brands

Jev is INSANE. 🤯 in 24.9 seconds it read 384 news from this morning and told 15 brands which stories to hop onto today, for $0.19. Claude Opus 5, running on the same feed at the same time, got through 4/384 and cost $0.77. per headline that is ~390x cheaper, and the answer comes back before you finish reading the…

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X Post · Experiments

A drone in an asteroid field

Jev flying a drone through an asteroid field. 300ms decisions. Left / right / slow / accelerate. You can watch the decisions happening live on the right. Green = Jev’s own confidence. Purple = “I’m not sure, ask the big model.” 99% of the time, Jev steered the drone on its own. When a giant unknown object appeared in…

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X Post · Data & analysis

1,891 ads in 19 seconds

ESTA HERRAMIENTA ACABA DE ROMPER TODO EL MERCADO DEL AD SPY Maxfusion ha cogido JEV, el modelo nuevo de TypeSafe, y le ha metido la ad library entera de una marca → 1.891 anuncios clasificados → 19 segundos → 0,12 $ Y no es un resumen: cada anuncio etiquetado por etapa del funnel y estilo creativo, más la radiografía…

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X Post · Data & analysis

700 live ads in 40 seconds

jev is an insanely cool product Saw a post about jev and decided to check it out This thing is straight up gold whoever built it is a genius jev is the future Scanned over 700 live ads in 40seconds flat, and it cost me just 4 cents. If you're in marketing, this kind of crazy fast data crunching is hands down the best…

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X Post · Experiments

Whose Jev Is It Anyway?

I'm laughing out loud. I turned Jev into an improv judge. Introducing: 'Whose Jev is it Anyway?'

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Voice commands for Autumn billing

🚨Do not record Jev demos while @ogme01 flies a drone over your desk 🚁 You can now dictate attaches, updates, schedules &amp; more in the @autumnpricing dashboard, no more manual edits Safe to say my tenzing tower didn't survive this one tho 😭

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X Post · Data & analysis

Maxfusion Competitor Research

JEV makes competitor research feel like a cheat code We fed it Resilia’s ad library and it classified 1,891 ads in 19 seconds for $0.12 Customer journey stage, ad style, and a full account deep dive Coming soon to the maxfusion MCP https://t.co/ccBgEJ83VQ

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X Post · Experiments

Danish stock-market backtest

Jev trading the danish stock market for all of 2025(239 trading days). Sentiment-based on market data, news articles, wikipedia &amp; google trends. 8.1 million tokens for $0.32 🤯

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X Post · Data & analysis

Maxfusion competitor-ad research

JEV is insane for competitor research! We gave it Resilia's ad library It classified 1,891 ads in 19 seconds for $0.12 costumer journey step + Ad style And a complete deep analysis of the account Coming soon to maxfusion MCP

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X Post · Agent tooling

Starchild prompt routing

Starchild just became the first professional-grade app to integrate Jev from @typesafeai We use Jev to help route to LLMs which gave a 20x decrease in cost and 6x increase in speed for prompt classification Here it is classifying prompts in real-time (avg time was 140ms)

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X Post · Games

Flappy Apex plays itself

That’s Jev playing Floppy Apex, passing the previous best score and not thinking of stopping anytime soon 🏆 It was wired up by Apex via Appduct, with some adjustments made in Fable. @AgentConf

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X Post · Browser & computer use

jev-job-hunter

I rebuilt my job crawler with Jev. The task: start at a company's official homepage, find Careers, and identify jobs that match my profile. Before, with an LLM: ~5 minutes. After, with Jev: just over 20 seconds in my test. Every company organizes its website differently. Jev identifies the Careers entry point, chooses…

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X Post · Agent tooling

Just-in-time model selection in Goose

Experimentation with Jev from @typesafeai and our harness @goose_oss Use Jev to take a prompt and JIT select a model just before the turn runs. Jev and models like it will be useful in many areas and this is just early prototype code on a first idea

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A computer assistant that listens preview
X Post · Browser & computer use

A computer assistant that listens

building a computer assistant with Jev local whisper listens to everything I say which then gets classified by Jev to determine what actions to take it uses a small Swift app to provide the full accessibility tree to Jev (i.e. tell its what's on my screen, what can be clicked, etc) still super early, but promising and…

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X Post · Agent tooling

Measuring progress in agent traces

Got early access to @typesafeai Jev and spent a few hours building on it. The problem I keep hitting: agent traces tell you which tool ran, how long it took, what it returned but never whether the agent is actually getting anywhere. An agent editing, testing and reverting the same file six times looks perfectly…

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X Post · Browser & computer use

Intelligent autofill buttons

I love that Jev can fit into basically any app. You don't need to build everything around a chat, you can just integrate intelligent features into the background, like these auto-fill buttons. Much better UX than with slow LLMs. Feels like the missing piece!

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X Post · Workflows

Inline Manual contextual help

Adaptive real-time in-app support with Jev + It detects where you're struggling and quietly adds help directly into the UI - explanations, suggestions, even actions. Jev figures out if and where you're struggling, then triggers the right functions when needed. An LLM can render contextual help from your knowledge base…

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X Post · Data & analysis

Which outreach signals book demos

JEV is insanely fast. We gave it a massive dataset based on thousands of outreach messages and asked: Which intent signals generated the most booked demos? 40 seconds later, we had the answer. Cost: less than $0.20. JEV can also rank leads, measure prospect-message fit, and uncover what actually drives campaign…

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X Post · Data & analysis

Cascade Search typed query filters

A search bar that knows when it doesn't know. cascade-search is a 27K-parameter model that parses queries like "open bugs from sam since last week" into typed filters, in your browser, in 0.25 ms. When it isn't sure about a word, it asks Jev. Only that word.

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X Post · Experiments

Instant team scheduling with Cal.com

Jev + API = find best overlap among team members in an instant the longest waiting time is our API call round trips 🤯 will come up with ideas how we can bake Jev into our products

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X Post · Experiments

Does Jev understand color?

does Jev understand colour? incredible model, very cheap and fast. definitely feels like a leap forward for creating new UX/UI paradigms on top of modern language models.

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X Post · Data & analysis

Worth Replying finds relevant X discussions

We built "Worth Replying" with Jev + AIsa. Drop in a company’s domain and it finds people on X already talking about the problems your product solves. We tested it on > 150 tweets found > 750 Jev decisions in 18.8s > 79 worth replying to > 71 archived > $0.007 Jev cost 🤯 Full run below👇

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X Post · Data & analysis

700 leads scored in 40 seconds

JEV is INSANE. We gave it 700 high-intent leads and personalised outreach messages. In 40 seconds, it predicted how each message would perform, assigned a confidence score and detected lead-message mismatches. All for just $0.09. JEV can also score leads, analyse buying signals, match each prospect with the best…

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X Post · Workflows · Data & analysis

Paper Breakdown research recommendations

Organically integrated JEV in a real project The Paper Breakdown Recommendation Engine We already had a working system that combines content-based and collaborative filtering. Pro users may now get additional curation with Jev. 0.0019$/user for ~70 recs 🤯 ~50 users in 5 secs with concurrent API requests This will cost…

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X Post · Experiments

Jev Calc

i made a smart calculator notebook using jev it can calculate ANYTHING!! 😅

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X Post · Data & analysis · Experiments

Scoring every shot in a video ad

Jev is insane for ad research. I built a tool that scores every shot of any video ad on meta in 1.5 seconds. It runs on Maxfusion + @typesafeai I pushed 450+ ads through it in less than 3 minutes. It pulls any advertisers live video ads from Research Lab on Maxfusion. Maxfusion watches the ads and gives a forensic…

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X Post · Workflows

Orus trade-strategy review

As promised, Jev is now integrated into Orus agents. What is Jev, and how can it help our agents? Jev is a model from TypeSafe AI, built to answer precise questions with structured answers. In Orus, it reviews the trades your strategy proposes, before they happen. It approves the entry, refuses it, or waits for one…

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X Post · Experiments

A robot arm picks up a ball

I gave Jev a robot arm. Two USB cameras, an SO-101, and @typesafeai's Jev choosing the next move at ~2 decisions a second. After a slip and some debugging, it went back for the ball and got it into the bowl.

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X Post · Browser & computer use

Voice-controlled Figma

Controlling Figma with voice using Jev from @typesafeai Total cost from first line of code to recording this video: $0.01 🤯

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X Post · Creative

Painting the Golden Gate Bridge

i 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)

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X Post · Agent tooling

Skill Router for Claude Code

Just 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. So I built myself a little personal…

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X Post · Experiments

MakerMods robot arm in MuJoCo

Got @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 confidence score. Jev makes the decisions for example…

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X Post · Games · Experiments

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 want to try it out! 👇🏻

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X Post · Browser & computer use

Voice-controlled computer use on a Mac

I 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.

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X Post · Experiments

Quality checks for physical-AI action labels

Jev 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 &amp; GPT models.

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X Post · Experiments

Intent-aware search in Replicas

small 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 - routing tasks to the right agent/model…

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X Post · Browser & computer use

Bannerbear instant field mapping

First 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.

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X Post · Browser & computer use

A second-hand shopping agent

Claude me integró Jev con Playwright para buscar usados. Lee unos 26 artículos por minuto y decide qué hacer con cada uno en 406 milisegundos Descartó los que no encajaban con lo que busco, ofertó por los que sí y hasta les mandó un mensaje a los vendedores cuando faltaba algún dato en la publicación. Toda la búsqueda…

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X Post · Experiments

Keystroke oracle

Also have been playing with @typesafeai Jev, insane! So many immediate use cases and new apps are possible. What a time to be a builder! Sharing some experiments here starting with: Keystroke oracle / predictive launcher: Your launcher ranks by aliases, fuzzy match, and habit. Jev reads intent: type "the pdf I just…

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X Post · Data & analysis

Post scoring with SuperX

Jev + SuperX = virality solved ✅ Every post gets 61 questions in ~1s for $0.0004 🤯 &gt; fitted on 9,481 real posts from 207 creators &gt; picks the viral post 2 in 3 times &gt; never rewards reply bait So: write, score, rewrite, stop when it peaks. Free, no signup. try it below ↓

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X Post · Creative

A visual reference finder

I built a visual reference finder with Jev One single prompt → 100 images from Cosmos, NASA, and The Met my new rabbit hole for creative work 🌻

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X Post · Browser & computer use

One-click invoice finder

Jev is fun! One-click invoice finder for any website 🧾 - Automatically finds billing pages using @typesafeai's Jev - List/download all invoices with 1 click - Works with Stripe billing portals too - Remembers where invoices live for next time Should I open-source it?

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X Post · Workflows

Real-time Clippy

I built real-time Clippy with Jev. It quietly watches how you use the product and only wakes up when it thinks you’re struggling. Hesitating? Confused? Stuck? Clippy knows. Even its reactions are controlled by Jev. 👀

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X Post · Data & analysis · Experiments

3,282 posts, eight questions each

I gave Jev 3,282 of my X posts across 100M views and asked it to find what actually works for growth. 4,252,330 tokens $0.1282 for the full 8m 34s run! Each post got 8 questions about the topic, hook, tone, whether it teaches something, etc. How-to posts got 150 median likes vs the average median of 44. AI and coding…

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X Post · Experiments

Jev and ChatGPT Task Race

i made a @typesafeai jev+chatgpt instance race against a purely chatgpt instance on two super simple tasks to see the difference, 2-3x faster! :o on first-time tasks chatgpt will write a question set for jev on the fly, and then subsequent tasks get super fast https://t.co/gMBtV3ou3c

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X Post · Experiments

Jev plays Subway Surfers

jev is insane 🤯 Here is Jev playing subway surfers at super human speed, and also playing 50 games at once. cost less than a cent to do this run. Jev does not replace llms like astra or fable, but opens up an entirely new world of capabilities.

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X Post · Data & analysis

Jev Detector

Announcing Jev Detector The world's fastest AI slop detector, built on jev from @typesafeai ~10,000 words scanned for slop in ~2 seconds Best part, its free, no sign up required, enjoy!

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X Post · Games · Experiments

Jev beats Brock in Pokémon FireRed

Jev just beat Brock in Pokémon FireRed in less than 5 minutes. That’s 5 minutes of actual real-world time. You can see the in-game time in the video. This is a completely different way of having an LLM play a game. Jev doesn’t see pixels or directly press buttons. The emulator memory is decoded into the current game state, code generates the legal actions, and Jev decides what to do next. Code handles the execution. The game freezes while Jev thinks, then runs as fast as possible between decisio

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Jev Minecraft Agent

A gameplay prototype uses Jev to automate Minecraft for extended sessions at low token cost.

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X Post4:01

An explainer covers how Jev differs from generative models and where its typed decisions fit in real applications.

Vinny (@hot_town)
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X Post · Experiments

Jev Voice Turn Detection

A voice prototype uses Jev to decide whether a speaker has finished and how long to keep listening.

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X Post1:56

Chetaslua applies five yes/no questions to both candidates in a debate. The creator explicitly describes this as an experiment, not a fact-check.

Chetaslua
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A shared demonstration of a Jev-driven decision loop in a driving simulator.

SuSu_酥酥👅
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Matija Sosic gives a short explanation of the core idea behind Jev.

Matija Sosic
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X Post · Games · Experiments

Jev plays Slay the Spire 2

昨天出的 Jev 模型 适合高频决策，那岂不又是适合打游戏？ 之前用 GPT-6 Astra 代打杀戮尖塔2 能力强但速度慢。 我刚实测用 Jev 打，行动思考只需 0.7秒， 画面我都没看清它就操作完了。 这超人类游戏速度， 着实又让我震惊瘫坐了😅 语言很难描述这感觉，看视频⬇️

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X Post2:56

TypeSafe founder Diogo Almeida introduces Jev, a model designed to return structured decisions rather than generated prose, and outlines the ideas behind its launch.

Diogo Almeida
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X Post · Experiments

Jev Memory Retrieval Experiment

A creator tests Jev in a memory workflow and reports lower token use and faster retrieval; the measurements remain creator-reported.

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Jev $10K Trading Experiment

A creator-posted trading experiment shows Jev making decisions against a $10,000 account while a dashboard tracks the market, account and model output.

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X Post · Agent tooling

A chief of staff for bots

got @typesafeai's new model Jev as a chief of staff for bots Jev reads the task, wakes the right teammates off the bench and gives each one the right model It is possible on OpenMausBot as it supports all the LLMs from your existing subscriptions Jev as a decision engine is great

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Hard-coded rules moved to Jev preview
X Post · Agent tooling

Hard-coded rules moved to Jev

Now using @typesafeai Jev in etc AI ends up vibe coding so much AI regex slop if you don't read the code, so I can finally move all this hard-coding to Jev and it's insanely fast! Also for regular LLM calls, it is around 10x faster, 50% cheaper

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X Post · Data & analysis

The X algorithm, rebuilt with Jev

rebuilt the X algorithm with Jev - uses real weights - simulates virality of your post - has a global feed (you see everyone) it's insanely accurate

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Five hundred agents in a 3D environment

Jev is actually insane. We benchmarked it, and the results completely change the game for us: > 500 real-time agents > running in parallel > in a 3D environment The preliminary results are crazy: > 500ms average latency > 35 API calls/s > all with a naive implementation We did 0 optimizations! The bottleneck is not…

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X Post · Agent tooling

Jev Model Router

A router uses Jev to choose the model that best fits each incoming request.

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Live clinical-transcript classification prototype

During a live clinical consultation (with an ambient scribe), the transcript is periodically supplied to Jev, which traverses a medical ontology to classify symptoms, update the differential diagnosis, suggest treatments and identify red flags in real time.

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X Post · Experiments · Games

Jev plays Tetris

Puse a Jev, la nueva IA de @typesafeai, a jugar al Tetris en modo súper difícil. Decidió cada jugada en unos 0,3 segundos. Acomodó 357 piezas e hizo 134 líneas en solo 2 minutos. Increíble.

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Jev inside a security pipeline preview
X Post · Workflows

Jev inside a security pipeline

these are results of using jev on one of our security pipelines. we already have to use smaller (and dumber) models to make it economic and this model does it over 5x cheaper, faster and while maintaining much higher accuracy. i don't normally hype over new model releases but that's the first one that actually…

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X Post · Browser & computer use

Headless Chromium agent

Acabo de terminar la implementación de @typesafeai + Chromium Headless para que mis agentes puedan navegar por internet a una buena velocidad! En este ejemplo le pido al agente que entre a la página del término "Café" en Wikipedia y navegue por los hipervínculos hasta terminar en la página "Inteligencia artificial"…

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500 emails for 3.5 cents

Yeah Jev by @typesafeai is very cool. It classified 500 emails in seconds. And it costed 3.5 cents.

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Blitz chess against frontier models

Jev VS Fable 5.1 VS GPT-6 Astra: chess typesafe's new Jev V13 isn't an LLM. it doesn't chat, doesn't explain, doesn't write code — it only makes decisions. so we made it play blitz against frontier LLMs. the test: 5+0 blitz. every move is one API call. Jev V13 vs Fable 5.1: • fable outplayed it. by move 29 it was +16…

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X Post · Experiments · Creative

Jev Sunflower

I was wondering if @typesafeai Jev could generate images so here's what a sunflower looks like according to Jev : https://t.co/vT4UiV4SqJ

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Writing one character at a time

i made an llm from first principles with Jev 29 yes/no questions per character: should the next key be a–z, space, comma, or period? highest probability gets append to it, then fed the updated text back in &amp; repeat an autoregressive loop made out of a classifier

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