Jev builds & demos
Explore how people use Jev in browser tasks, routing, evaluation and other workflows. Follow each case to its source; reported results belong to the original authors unless a first-hand test is explicitly identified.
@MalayVasa
Capture a Screen Region by Describing It
Name the screen content you want and watch the selection move to it.
@elune0x
Elune Coding Agent Switch
An author demo uses Jev to route work between Claude Code and Codex and review risky tool calls.
@mdlahfir
Lahfir Local Harness Router
Jev routes local coding work among Haiku, Opus sub-agents and external harnesses through a Claude Code hook.
@VladTerin
Vlad Terin Jev Browser
A Codex browser adapter in which Codex plans, Jev selects the next action and the browser executes it.
@lomeshdutta
Lomesh Dutta Skill Router
A Claude Code session-start hook uses Jev to rank installed skills against the user's goal.
@Frozune
Gavin's Jev Codex Model and Effort Router
A macOS Codex wrapper uses Jev to choose a model and reasoning effort from the task.
@roshanchandna
Auto-Guard for Coding Agent Tool Calls
Jev scores a proposed tool call and the user's request before code allows, escalates or blocks execution.
@draginol
Clairvoyance Jev Integration for Mac
Clairvoyance's Mac app adds Jev decisions for files, Deep Search and Code Search across coding agents.
@Saccc_c
Jev Use - Mac Calendar Automation Benchmark
10x faster macOS computer use with Codex and Jev eliminating LLM thinking pauses.
@MatijaSosic
45-Second TL;DR on Jev - System One for Agents
Concise visual explainer on why fast System One models provide agent instinct.
@jerryjliu0
DocJev - Intelligent Document Splitting & Routing
Open-source document classification and packet splitting with Jev and LiteParse.
@sarah_edo
WebMCP Side Panel - Keystroke Tool Selector
A Chrome side panel that uses Jev to select and fill tools exposed by the current page through WebMCP.
@iannuttall
Internal Link Tool for Up to 500 Pages
An internal-link tool using Jev to classify and select links, with CSV or JSON export.
@iam_zachi
pg-jev - Natural-Language Filtering in PostgreSQL
A PostgreSQL extension for filtering, ranking and classifying rows with Jev.
@aaayandev
YC Indexor - 6,000+ Startup Semantic Query Engine
Natural-language search across more than 6,000 Y Combinator startups using Jev.
@nutlope
Two-Stage Fraud Detection Funnel (Jev + Kimi K3)
An email fraud-classification demo that sends uncertain cases from Jev to Kimi K3.
@moritzkremb
Realtime Sales Call Copilot & Objection Forecaster
A sales-call copilot using Jev to suggest responses and track the call stage.
@desertantlabs
On-Device Audio Decision Pipeline (Ear + Voz + Jev)
A demo combining local audio models with a Jev decision call.
@nailthy62
Drape - Voice-Guided Virtual Wardrobe Stylist
A voice-guided virtual try-on experiment using Jev to select an outfit.
@coolish
Slay the Spire 2 AI Copilot & Card Evaluator
A Slay the Spire 2 gameplay demo using Jev for fast action decisions.
@s16h_
Metaview Candidate Sourcing Agents
Metaview's CTO reports using Jev across its agents to speed up candidate searches.
@TheIshanGoswami
Exa Live Web Context for Jev
A live demo that compares Jev's typed answer with and without retrieved web evidence.
Jev Browser
A Jev-driven browser agent exposed as an MCP server, CLI, or library.
@rileybrown
Agent Model Router
A community example of using Jev to choose which model should handle a task before generation begins.
@tamarajtran
Instant Context Compaction
A community demonstration of using Jev to score which coding-agent context should be kept, reviewed, or dropped.
@typesafeai
Wikiracing Fast Navigation
An official benchmark demonstrating Jev selecting optimal Wikipedia links in real time to reach target concepts.
CUA-S1 Form Automation
An open 706k-parameter System 1 model specialized for mapping user data into web form inputs in 50ms.
@gregpr07
Flight Search with Browser Use
A browser agent searching real-world flights at 1× speed with Jev choosing each next action.
@cline
jev-browser in Cline
A marketplace plugin that connects Jev-driven browser execution directly into the Cline coding agent.
@milindlabs
Computer Use Without Screenshots
On-device CoreML segmentation and OCR feeding text tokens to Jev for privacy-first desktop control.
@awlevin
TypeSafe Computer Use
Open-source macOS desktop control loop with bounded Jev decisions at every single step.
@manofsteel3129
AskJev (MCP Agent)
Claude handles conversational intent while Jev directs browser navigation across live websites.
@sawyerhood
Prompt Box Router
Auto-dispatches single prompt inputs to the optimal agent runtime, model tier, target computer, and directory.
@johnyeo_
Slack Agent Skill Routing
Pre-selects skills, tools, and parameters before an enterprise Slack agent runs, doubling speed.
@niazmorshed_
Jev Review (MCP Plugin)
An MCP plugin that scores and critiques coding agent output during active iteration loops.
@raihankhan_rk
DiffJury
Evaluates public PR links to provide instant safe-to-merge or review-required verdicts.
Stagehand on a remote browser
we built blazing fast computer/browser use with Jev + @Stagehanddev.
jev-trader
I built a trading bot with Jev!
Triage across 1,500 emails
this model is actually insane at email classification
1kpapers
I used Jev to classify 1,018 AI research papers.
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!
jev-e2e
JEV is changes the world of E2E testing!
Post scoring with SuperX
Jev + SuperX = virality solved ✅
724 competitor ads, broken down
jev is INSANE.
700 leads scored in 40 seconds
JEV is INSANE.
Jev plays Super Mario Bros.
got @typesafeai’s new model Jev to play Super Mario Bros.
AI slop detector
jev is INSANE.
Hide posts on X in plain language
I built a browser extension with Jev @typesafeai that can hide/collapse posts on
3,282 posts, eight questions each
I gave Jev 3,282 of my X posts across 100M views and asked it to find what actua
500 emails for 3.5 cents
Yeah Jev by @typesafeai is very cool. It classified 500 emails in seconds. And i
@abolbuild
$10,000 in Jev’s hands
I gave Jev $10,000 and let it trade
The X algorithm, rebuilt with Jev
rebuilt the X algorithm with Jev
YouTube sponsor skipper
Just trying out Jev, I made a Chrome extension that:
A filter for reply-guy comments
Pro tip: You can use Jev to remove annoying reply guy comments that X seems to a
Live viral post analyzer
Just created this with Jev by @typesafeai. A live viral post analyzer. As soon a
Jev plays Doom
We love how this doomo doomonstrates real-time intelligence and what can be doon
@syntaxfm
wtf is jev? Demos: Browser Use, Classifier, Router
Demonstrates browser automation, model routing, and tokenless agent loops.
@GregIsenberg
Jev is HERE. How to use it
High-volume business workflow automation via Vercel AI Gateway.
@vogeldev
Meet Jev: tested on 1,000 real emails
Selects category, urgency level, and auto-reply trigger in single pass.
@AICodeKing
Jev and Browser Use, fully tested
Validates incoming actions against injection patterns before navigation.
@RAmjad
Jev + Claude Code: the cheapest agentic loop yet
Decides whether to re-read files, run tests, or commit changes.
@promptwarrior
Jev full tutorial: 3 prototypes built live
Scores relevance and routes between local voice input and browser execution.
@MajoSayo
LogJev
An open-source Jev-style decision layer that accepts text, images, or audio and returns bounded choices or scores.
@whosfranki
MatchCN
Semantic component search for coding agents, using Jev probabilities to rank existing UI components before generation.
@zhilinjerrywag
Rolewise Resume Matching
A resume-to-job matching demo that reduces each resume–job pair to one bounded suitability decision.
@rafalwilinski
Massively Parallel Adversarial Browser Testing
A high-concurrency headless browser adversarial test suite testing web releases with bounded Jev DOM navigation.
@redp314
Jev Fast PR Reviewer (6 Real PRs)
Sub-second pull request evaluation running on 6 real repositories, triaging diff syntax and risk before human merge.
@dani_avila7
Claude Code Jev Model Router Mod
A native CLI mod for Claude Code that routes terminal coding tasks through direct TypeSafe API or Vercel AI Gateway.
@masahirochaen
Realtime Sales Negotiation Copilot
A live sales assistant that processes audio streams every 4 seconds, predicting the next optimal tactical objection response.
@masahirochaen
Smart Clipboard Resume-to-Form Autofill
Reinventing copy-paste by mapping unstructured resume text into complex multi-field hiring application forms instantly.
@higgsfield_ai
Higgsfield GenAI Model Auto-Router
An automated model router evaluating visual prompts to dynamically select the optimal image and video generation backends.
@hqmank
Jev Browser Skill (jb)
A standalone Playwright Chromium CLI that uses Jev to choose in-page browser actions.
@latentspacepod
Why I Couldn't Build Jev at OpenAI: Diogo Almeida
TypeSafe Co-founder & CEO Diogo Almeida explains why post-training on generative LLMs fails on agent loops and how RLCD trains System 1.
@patvscode
Open-Source Jev? Install Laya Locally + 3 Useful Demos
Step-by-step tutorial installing the open-source 420M parameter Laya model locally on CPU via ONNX with 3 runnable demos.
@zajkowskimarcin
What's NEXT #9: Smaller AI, Local Models & Jev
A deep discussion on why enterprise architectures are slimming down from heavyweight LLMs to fast specialized decision nodes.
@PatrickDang
Live Sales Role Play & Dynamic Objection Triage
A sales training and live role play agent that categorizes customer objections in real time to trigger battle cards.
@razeden0
Razedeno Jev Agent Workflow
Grok does the analysis while Jev filters leads with 6 questions; the author says it handled 3,412 leads and 20,472 decisions in 15.7 seconds.
@0x_rody
0x_rody Jev Agent Workflow
A list of Jev projects: desktop accessibility-tree control, games, drones, trading and more.
@0xRicker
0xRicker Jev Agent Workflow
Explains how a Jev decision layer routes models, tools and results across multiple agent paths.
@akshay_pachaar
Akshay Pachaar Jev Agent Workflow
Compares generative LLMs with Jev: the former generates token by token, while Jev judges between predefined decision options.
@elvissun
Elvis Sun Jev Skills Workflow
A Newsjack news-filtering case; the author says it processed 384 news items in 24.9 seconds for $0.19.
@0xRicker
0xRicker Jev Agent Workflow
Diagram of an agent control chain: structured state → Jev routing → model/worker → approval and execution.
@0xMovez
0xMovez Jev Agent Workflow
A GrokBot + Jev go-to-market workflow: Jev screens candidates first, then GrokBot handles the ones that pass.
@shengkunye
Shengkun Ye Jev for SEO Workflow
Monid connects Jev to 2,000 tools, showing lead scoring, SEO internal links, Reddit filtering and other uses.
@HamonPaulm
Hamon Paul Jev for SEO Workflow
An SEO/GEO agent cost case; the author claims the cost of one client task fell from about $250 to $25.
@0xCodila
0xCodila Jev Agent Workflow
Setup steps for GrokBot + Jev: Jev makes the decisions and GrokBot executes them.
@jesusislord
Jesus Is Lord Jev Agent Workflow
HypeMeter combines Jev with Minds to screen NFT project risk; the author says it was built in 4 hours.
@0x_rody
0x_rody Jev Agent Workflow
A Jev install/try-it list, including repositories for browser control and context compaction.
@yuhasbeentaken
Yuhasbeentaken Jev Agent Workflow
A collection of Jev use cases for marketing work: lead scoring, email triage, support routing and more.
@rronak_
Rronak Jev Skills Workflow
Astra plans while Jev controls Minecraft actions, demonstrating a win against the Ender Dragon; the author reports the time and cost.
@_avichawla
_avichawla Jev Skills Workflow
Jev is used to evaluate agent execution traces and, with the Beacon memory layer, reuse those signals across several coding agents.
@dani_avila7
Dani Avila Jev Skills Workflow
A skill-selection approach for Claude Code: send the skill list to Jev to judge, then inject only the matching skills.
@ai_300
ai_300 Jev Skills Workflow
Relays Newsjack's comparison data: filtering 384 news items, compared with Opus.
@rubenhassid
Ruben Hassid Jev Skills Workflow
Recommends an introductory Jev video, stressing that it lets agents decide their next step faster.
@type_tjay
type_tjay Jev Skills Workflow
An overview of a tool stack that puts Jev into marketing and video production; mostly promotional.
@GoSailGlobal
GoSailGlobal Jev Skills Workflow
A search re-ranking counterexample: Jev tested on a 33,047-entry skill directory, questioning whether re-ranking alone clearly beats vector retrieval.
@borjafat
Borja Fatjo Jev for SEO Workflow
An internal-link analysis test: the author says 586 pages took 45.1 seconds and produced 584 link suggestions, and compares Claude's results and cost.
@irabukht
Ira Bodnar’s Ryze AI SEO/GEO workflows
Seven author-described SEO/GEO decisions, from page changes to internal links and draft review.
@irabukht
Ira Bukht Jev for SEO Workflow
Describes an SEO/GEO audit-and-fix workflow and claims about 90% lower cost; this is the project's own claim.
@VengeonsP
VengeonsP Jev for SEO Workflow
An introduction to a French SEO automation guide: deciding internal links, standalone keyword pages, and whether to update or merge content.
@askOkara
AskOkara Jev for SEO Workflow
An overview of Okara's six agents using Jev for marketing and SEO workflows, including opportunity discovery and AI citation analysis.
@0Gdao
0Gdao Jev for SEO Workflow
An e-commerce product-screening case: Jev judges brand fit, saturation and next action, and winning products are handed to SEO and other agents.
@hityyhz
hityyhz Jev for SEO Workflow
Relays claims of lower SEO/GEO cost and faster processing, listing steps such as Search Console and AI citation analysis.
@thekuchhthekuchh Jev for SEO Workflow
Reshares an SEO/GEO audit cost case, mentioning Ryze AI and the MCP/Claude Connector.
@tetsu_tetsu333
tetsu_tetsu333 Jev for SEO Workflow
A Japanese internal-link analysis tool case: the author says analyzing 100 articles cost 78 yen, and explains the candidate pre-filter and Jev judgment flow.
@0xPascual
0xPascual Jev for SEO Workflow
Explains why structural SEO/GEO checks suit classification and routing, and repeats the claim of cost falling from about $250 to $25.
@ericosiu
Eric Siu Jev for SEO Workflow
A walkthrough of several agents using Jev, including SEO publishing decisions, evidence checks and the steps that still need human judgment.
@Yarilo7brigada
700 live ads in 40 seconds
A marketer scanned more than 700 live ads with Jev for four cents.
@TheMattBerman
723 ads, 30 personas, 22 cents
A scroll-or-stop focus group run entirely as Jev decisions.
@razaanstha
Agentic browsing in Chrome
A Chrome extension where agents browse and click for you, with Jev deciding.
@_MaxBlade
An always-on assistant with no wake word
Jev tells a command for the computer from ordinary talk.
@everton_dev
App Store keywords from the real competition
Jev drops the lookalikes before they pollute the keyword set.
@waynesutton
askjev.ai
Ask Jev anything. It won’t answer, it will judge.
@milindlabs
A chief of staff for bots
Jev reads the task, picks the agents and gives each one a model.
call-coach-ai
A sales-call coach where Jev scores what was said.
@0xPaulius
Launching agents on a canvas
Orchestration without waiting for a slow LLM loop.
@kenonews
A shortlist from a competitor swipe file
Ads broken down by hook, angle, offer and format.
@hari_trinay
A 26-sheet plan set in 2.9 seconds
Civil and building plan sheets classified for half a cent.
@skeptrune
deepseek-v4.1-flash-jev
An open model made to answer like Jev with a scoring endpoint.
@robj3d3
Doomscroll Filter
Pick a niche, and Jev sorts fresh X posts into Read, Skim or Pass.
@marcelpociot
A Downloads folder that sorts itself
A macOS app that files downloads by your rules, with no LLM besides Jev.
@Raptor_zip
A dual-arm robot with Jev in the middle layer
Decisions to Jev, inverse kinematics and physics to code.
@o_kwasniewski
End-to-end tests run by agents
An open-source framework for agent-run e2e tests on web and mobile.
@FBddcz
EmbodiedJev
A MuJoCo workbench for robot decisions, with Jev in the loop.
@hametgholizadeh
Which exam questions come back
80 real exam questions and 297 practice ones, ranked in 80 seconds.
@xyz04274951
Voice control over Fusion 360
Jev decides only one thing: was that a command or chatter?
@jackcheng
A canvas you control by pointing and speaking
Jev turns pointing and speech into drawing actions.
@dabit3
Intent-based search in Gmail
Search an inbox by what you mean, not the words you type.
@mormonnegro
Headless Chromium agent
Jev drives headless Chromium so agents can browse quickly.
@higgsfield_ai
Ad creatives from filtered assets
Jev filters content and picks assets; DeepSeek and Higgsfield turn them into ads.
@Kelbie
Hunch
Code review against rules you write in plain English.
@floriandarroman
Jev against Fable 5.1, 100 builders
The same post scheduler, built twice, in front of an audience.
@FarouqAldori
One-click invoice finder
Finds the billing page on any website and lists every invoice.
@NiazMorshed2007
JCR · Jev Capability Resolver
Turns a vague agent request into a deterministic command.
@aibuilderclub_
jev-browser, a general browser skill
Give it a site and a task, and Jev decides every click.
@thekitze
Jev Calc
A calculator notebook that understands plain-language terms.
@jozef_gherman
Jev Detector
An AI slop detector built on Jev, scanning about 10,000 words in 2 seconds.
@RomanSlack
jev-drone
A simulated drone that asks Jev for a judgment 2.5 times a second.
@stringsaeed
A syntax highlighter on Jev
Jev names the language, colours every word and fires nine lint rules.
@hqmank
jev-job-hunter
A job crawler that finds the Careers page and scores each role against your profile.
@ephraimduncan
A model router on Jev
Jev picks which model fits each request, then sends it there.
@choxos
Jev Reviewer
Systematic-review data from trial reports, every answer a verbatim quote.
@RubyBrewsday
jevcumber
Cucumber tests from the .feature file alone. No step definitions.
@TamirSPIRITT
JevForm
A form that branches by meaning instead of if-then rules.
jevgrep
Semantic code search for agents: find behaviour, not strings.
@sarvagya_kul
400 companies matched to one candidate
Predicts which jobs a candidate is most likely to get, for $0.0005.
@wmoto_ai
A local Jev
A Jev-style model running locally, with room to get faster.
@mxfp4
Lurk
Find and monitor Reddit threads to get cited by AI, for free.
@acharyaagamya
Magic Jev Ball for code review
Shake it on a pull request and Jev approves or rejects in 200 ms.
@aresotik
1,891 ads in 19 seconds
A whole brand ad library, labelled by funnel stage and style.
@droidrun
Mobile Jev
A mobile agent on a real Android phone, with Jev making each decision.
@CodingGarden
A chat bot with no LLM
Jev picks the tool and its arguments, so answers are instant.
@fayazara
900 images in 40 seconds
Fayaz Ahmed’s image classifier: OCR reads each image, Jev sorts it.
@justALEXWORTEGA
openjev on Qwen 4B
An MLP trained on top of Qwen 4B that works like Jev.
@pierreeliottlal
Which outreach signals book demos
Jev read thousands of outreach messages and found the signals that booked demos.
@SimAudience
An A/B test against 4,000 personas
Two launch tweets, voted on by survey respondents, in twelve seconds.
@dabit3
Keystroke oracle
A predictive launcher, the first of Nader Dabit’s Jev experiments.
@dabit3
Predictive spreadsheets
Name a column and Jev fills in every row, about 100 ms each.
@iam_zachi
A real-time ad blocker
Jev checks every element on the page and removes the ads.
@sotak
Real-time Clippy
A Clippy that wakes up only when it thinks you are stuck.
@lykycy123
RoboJEV
Two-stage Jev control of a Franka Panda arm in MuJoCo.
@AlanDaitch
A second-hand shopping agent
Reads about 26 listings a minute and decides on each in 406 ms.
@marcus_loweCopy and paste, with a decision in between
What you copied and where you are pasting decides what arrives.
@0xaniol
talkr
Speak for 30 seconds, and Jev scores the pauses and filler words.
@stevekrouse
TypeSafe Typewriter
Sixteen judgments about your text, asked again on every keystroke.
@sabrinaesaquino
24,000 Hacker News posts in two minutes
Jev on the Venice API, sorting a day of Hacker News into 12 buckets.
@0xMovez
100,000 viral posts in 20.4 seconds
Fourteen yes-or-no calls per post, for 67 cents.
@dsqjaffa
Jev for content marketing
Jev watches every video in your niche and judges it before you see it.
@albicodes
A visual reference finder
One prompt, 100 images from Cosmos, NASA and The Met.
@chddaniel
Website to App
Paste a URL and Jev decides how to rebuild the site as a native mobile app.
@marckohlbrugge
Filtering WIP todos by meaning
Finds the todos where revenue moved, or the work got stuck.
@yuhasbeentaken
1,315 posts across eight dimensions
A dashboard that labels a post archive for about nine cents.
@nateherk
Breaking, golden nugget, or slop
Nate Herk tags his X feed in real time with three labels.
@the_cyw
X timeline labeler
A Chrome extension that labels every post on your X timeline.
@venturetwins
Natural-language search over Zillow
Thousands of listings sorted by what the site has no filter for.
@ctatedev
json-render + Jev: Instant Generative UI
Chris Tate combines json-render with Jev to generate UI components, actions, and entire design system layouts in milliseconds.
@miu21590
Dynamic GPT-6 Reasoning Effort in Codex via Jev
vechen uses Jev to switch GPT-6's reasoning effort mid-task inside Codex, reducing Astra costs by 50% (author-reported).
@leshemco
Stencil QA Agent
A QA loop where Jev selects browser actions while a frontier model plans and vision verifies.
@br_huni
ClearJev — Codex Prompt Model Routing
An independent Codex CLI skill where Jev selects a model for each prompt.
@mika_systems
Jev Semantic Code Reading for Claude Code
A Claude Code plugin that uses Jev to locate relevant code and narrow large reads before the agent consumes context.
@svpino
Hotel Review Filtering with Jev
Compare hotels by the review details that matter to you: Wi-Fi and noise.
@Kiratchi0328
AI Plays Minecraft with OpenAI and Jev
An AI character plays Minecraft and narrates its actions in a community demo.
@mikenevermiss
Jev Skills for Routing, Guardrails and Fan-out
Reusable community skills for adding Jev decisions to agent workflows.
@a16z
Jev in Software: A TypeSafe Founder Interview
Diogo Almeida discusses why software needs decisions it can act on.
@polydao
Jev and Claude: Workflow Architecture PDF Overview
A community overview of pairing Jev decisions with a generative model.
@OpenRouter
Cache-Aware Model Routing with Jev
Choose a model and reasoning effort for each request while accounting for conversation cache.
@haaarshsingh
Typo-Aware 404 Page with Jev
Help visitors find the intended page when a URL contains a typo.
@gemama0
Automatic Obsidian Note Tagging with Jev
Organize an existing note collection with automatic tags.
@alexchristou_
Search Saved X Bookmarks with Jev
Find useful posts again in years of accumulated bookmarks.
@MatthewBerman
San Francisco City Simulation with Jev
Explore Jev-driven behavior in an Unreal Engine city demonstration.
@Yarilo7brigada
Personal Feed Filtering with Jev
Turn a noisy social feed into a shortlist of posts worth reading.
@jetwaniavinash
Claude Code Project Memory with jevmem
Keep useful decisions between coding sessions instead of saving every message.
@chrisbrownridge
Meta Ad Landing Page Classification with Jev
See what page types, offers and sales language competitors use.
@raph_guilhem
Competitor Ad Scoring with Opus and Jev
Shortlist advertising ideas with explicit criteria before creating variants.
@tan_stack
TanStack AI Subagent Routing with Jev
Route a chat request to the right subagents and show their work separately.
@kraayenJon
Search and Organize Saved LinkedIn Posts
Find useful posts again in a categorized bookmark board.
@eduardo_builds
Find Answer Passages on a Web Page with Jev
Ask a page a question and jump to passages that answer it.
@dumbfook
Filter Your X Timeline with Jev
Choose unwanted topics and let Jev judge each post.