The Jev launch post
Diogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
Latest addition
Source check
Recent activityA FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
Diogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
TypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
TypeSafe announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
TypeSafe highlights Jev’s typed-output approach: applications provide state and questions, then act on probabilities, choices or scores. The linked announcement also covers the Venice API integration.
Start with the Launch Post. Explore four official signals.
349 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Jev tests shooting skills in the arcade game Time Crisis, with a harness to assist performance.
Source-linked curation
Jev automates browser tasks by selecting actions from a dynamic action space.
Source-linked curation
Jev handles seven SEO and GEO workflows, including competitor page analysis, citation likelihood, and content optimization.
Source-linked curation
A Chrome extension using Jev to detect and skip YouTube sponsor segments in real-time.
Source-linked curation
Jev is used to predict human moves in a rock-paper-scissors game.
Source-linked curation
Jev controls live 3D character expressions with real-time decision-making.
Source-linked curation
A community experiment using Jev as a plugin in Claude to reduce unnecessary tool calls, cutting token count from 1M to 86K.
Source-linked curation
A plugin integrates Jev with a browser in Cline, enabling it to perform web-based tasks through a desktop application.
Source-linked curation
A tool for instant field mapping between templates and data sources, simplifying data alignment with one-click functionality.
Source-linked curation
A setup using Jev and GrokBot to route AI agent tasks efficiently, reducing costs and execution time with a seven-step configuration process.
Source-linked curation
A trading bot using Jev to decide buy/sell actions based on asset price feeds and executing real trades.
Source-linked curation
A chat bot using Jev without a large language model, providing instant responses by integrating web search, Wikipedia, weather, and other tools.
Source-linked curation
A claim about Jev's capability to process large volumes of ad data quickly, described as a market disruption.
Source-linked curation
A project where Jev attempts to defeat the Pokémon League in Pokémon Gold, using basic controls to navigate and win.
Source-linked curation
Jev rapidly analyzes competitor ads with detailed classification and cost efficiency.
Source-linked curation
Utilizes Jev as a decision engine to manage and coordinate multiple bot agents for complex tasks.
Source-linked curation
Jev filters social media posts to reduce negative content exposure by categorizing them.
Source-linked curation
A smart calculator notebook capable of performing various calculations using Jev's processing power.
Source-linked curation
TypeSafe highlights Jev’s typed-output approach: applications provide state and questions, then act on probabilities, choices or scores. The linked announcement also covers the Venice API integration.
Jev PASSFIT 79%CAT 72%
An AI-driven hedge fund utilizing Jev for fast and cost-effective trading decisions.
Source-linked curation
A game integrating Jev to display real-time decision probabilities during gameplay.
Source-linked curation
A local Jev model for processing tasks with potential for improved speed.
Source-linked curation
A game where Jev makes decisions to keep a city on a whale alive, integrated with GPT-6 Astra and H3 Max.
Source-linked curation
A community guide outlining 10 steps to implement Jev for faster decision-making in AI agent systems.
Source-linked curation
A Jev-powered system that analyzes PDFs page by page to determine which require OCR processing.
Source-linked curation
Integration of Jev into a game for fast and cost-effective performance.
Source-linked curation
Agent makes rapid shopping decisions using Ego Lite and Jev. Completes 20 product evaluations in under 4 seconds.
Source-linked curation
A tool developed using Jev to create a voice builder for Youform, noted for its speed.
Source-linked curation
A community post describing an SEO audit using Jev to analyze website internal links in 45 seconds.
Source-linked curation
X timeline labeler. A community post describing a Chrome extension that categorizes X posts into types like engagement bait or promo.
Source-linked curation
Jev offers structured decision-making for security workflows with high speed.
x.comJev for security engineeringExplore this project ↗Source-linked curation
Jev tags X posts in real time with labels like 'breaking,' 'golden nugget,' or 'slop'.
Source-linked curation
A free open-source search tool powered by Jev and a search API for plain language queries.
x.comJev SearchExplore this project ↗Source-linked curation
Voice-dialog turn-end detection using Jev scores after speech.
x.comAIAvatarKit turn-end gateExplore this project ↗Source-linked curation
Preview of fast browser use with Jev and OpenCode's browser CLI.
x.comOpenCode browser use powered by JevExplore this project ↗Source-linked curation
Local tactics shrink 225 moves to about 40 candidates, then Jev picks among tiered options.
x.comJev gomoku harnessExplore this project ↗Source-linked curation
Two decision channels on ViZDoom, navigation at 5 Hz and combat at 12 Hz, with an 18-kill test run.
x.comViZDoom Jev agentExplore this project ↗Source-linked curation
Task plus subscription list in, Jev picks which model or agent should handle it.
x.comModel router CLIExplore this project ↗Source-linked curation
Near-real-time scoring of TikTok and Instagram hooks against about 100 personas.
x.comHook panel A/B testerExplore this project ↗Source-linked curation
Lists six specific tasks where Jev is used for fact-checking, ranking, text finding, citation checking, note grouping, and agent failure analysis.
x.comSix things I will still use Jev forExplore this project ↗Source-linked curation
Short video explainer of how Jev's typed-decision loop works.
x.comJev in 34 secondsExplore this project ↗Source-linked curation
A community post explaining Jev's role in improving agent efficiency and cost-effectiveness.
x.comHow Jev makes agents faster and cheaperExplore this project ↗Source-linked curation
A community post discusses Jev as a faster general classifier/decision-maker, questioning its accuracy in complex scenarios and noting potential benefits in limited solution spaces with low latency requirements.
x.comDay-one notes from a skeptic, in ChineseExplore this project ↗Source-linked curation
A community post describing Jev as a decision-making tool with specific limitations and use cases.
x.comA hype-free explanation of JevExplore this project ↗Source-linked curation
Browser extension that classifies an article's framing, type, topic, and loaded language with Jev.
x.comGround Truth news-framing extensionExplore this project ↗Source-linked curation
10-step guide to implementing Jev for AI agent development and cost efficiency.
x.comJev Engineering: a 10-step roadmapExplore this project ↗Source-linked curation
Technical notes on Jev's architecture, including parallel processing and probability output without text generation.
x.comJev’s architecture, notes in JapaneseExplore this project ↗Source-linked curation
Jev versus a hand-built regex on 544 public data-protection resolutions: 98.2% agreement for about five cents.
x.comSpanish AEPD corpus testExplore this project ↗Source-linked curation
Proposal for custom Jev-style models to optimize agent workflows. Could reduce computational costs in decision-making processes.
x.comCustom Jev-style models for agent workflowsExplore this project ↗Source-linked curation
A critique of using Jev for context compaction, highlighting issues with its approach to managing AI agent history.
x.comThe case against Jev compactionExplore this project ↗Source-linked curation
A guide for installing Jev skills, highlighting its potential to replace traditional LLM usage.
x.comGetting started: install the skillExplore this project ↗Source-linked curation
An article explains Jev's capabilities and highlights various projects built with it.
x.comWTF is Jev, and 9 things people are buildingExplore this project ↗Source-linked curation
A collection of GitHub repositories highlighting practical and developmental Jev projects, including browser agents and trading bots.
x.comJev repositories worth a look, in JapaneseExplore this project ↗Source-linked curation
Desktop writing app using Jev for fast structured writing judgments.
x.comJev in a Grammarly-style Mac appExplore this project ↗Source-linked curation
Guillermo Rauch: Jev reviews every fx command, faster and more accurate than a chat model.
x.comVercel fx: Jev as a command safety reviewerExplore this project ↗Source-linked curation
MCP skill router where Jev picks the relevant skills instead of a long agent search.
x.comskillbox + Jev skill routingExplore this project ↗Source-linked curation
Brood War in WASM exposed as an MCP server, with Jev playing and still losing to a Zerg rush.
x.comStarCraft Brood War WASM MCP demoExplore this project ↗Source-linked curation
Hemant Kumar on his 151M ModernBERT reproduction: 0.83% adaptive calibration error, 3.0% of predictions flip when the option list is reversed, 35.6ms on CPU, with the failed use cases reported alongside the wins.
x.comVerdict (Open-jev) launch threadExplore this project ↗Source-linked curation
Work-in-progress PR reviewer with plain-English Jev rules.
x.comjev-rabbit PR review botExplore this project ↗Source-linked curation
A community post explaining Jev as an AI for decision-making, faster and cheaper than frontier LLMs.
x.comJev, explained like you’re fiveExplore this project ↗Source-linked curation
Jev trades 15-minute and 1-hour BTC, ETH, and SOL markets on Kalshi.
x.comKalshi prediction-market botExplore this project ↗Source-linked curation