Guideyoutube.com/@RobTheAIGuy
Jev is INSANE! How to use it and its use cases
Rob The AI Guy explains Jev fully, with the use cases he found.
Updated Nov 10, 2026
855 projects, posts and guides about Jev, the System One model from TypeSafe AI. Each entry links to its source and shows the cost and speed its author reported.

Diogo Almeida
@CompleteSkeptic
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revolution
Newest first, 664–697 of 1072. All 1072 in curated order
Guideyoutube.com/@RobTheAIGuy
Rob The AI Guy explains Jev fully, with the use cases he found.

GitHubInbox and support
A macOS overlay that judges message intent and risk, then drafts.
jev-chat
492

GitHubSocial feeds
Low-quality, spam and ad posts get a translucent watermark.
qs-lll
9Guideyoutube.com/@LangChain
LangChain walks through putting Jev inside an agent harness.

GitHubTools and apps
Software by reflex: a sentence picks a small program and runs it.
evoke-build
22
GitHubOpen source
Turn any LLM into a Jev-style decision model, with no training.
Nokia Applied Research
1.3k
GitHubSDKs and integrations
Uncertainty-aware pattern matching and control flow for Effect.
doeixd
17Guideyoutube.com/@ColeMedin
Cole Medin on what the class is, and how to actually use it.

GitHubGames and real time
A Texas Hold'em benchmark for decision models, with leaderboards.
ProphetLab
12
GitHubOpen source
A from-first-principles rebuild of the ideas behind Jev.
Kye Gomez
105
GitHubGames and real time
Hermes plans, Jev picks bounded actions, Mineflayer executes.
Teknium
10
GitHubAds and marketing
Millisecond viral hook telemetry, in a Chrome extension.
ehui1226
22
GitHubSDKs and integrations
A Swift 6 bridge from Apple's Foundation Models to Jev.
Peter Friese

GitHubEcommerce
While you shop, Jev guesses the seller's working hours culture.
littlewindy123
8Guideyoutube.com/@LatentSpacePod
Latent Space interviews TypeSafe’s Diogo Almeida on what System One models are for.



Guideyoutube.com/@AdamGardner
Adam Gardner on both decision models and the argument around them.

GitHubSDKs and integrations
Typed decisions from language models, as a Swift package.
Mattt
19

GitHubOpen source
A Jev-style conversion of Qwen-3.5-4B, at 0.169 s per frame.
RJMSWD
1040.169 sGuideyoutube.com/@Telusko
Telusko’s crash course on typed decisions with TypeSafe.

GitHubSDKs and integrations
A Rust, Jev-compatible /v1/systemone engine, one prefill per judgement.
Yijun Yu
17

Guideyoutube.com/@krishnaik06
Krish Naik on what Jev is from TypeSafe AI, and whether it replaces an LLM.



GitHubTools and apps
Curated Jev showcases from X, by category, with media previews.
2456868764
10Guideyoutube.com/@LangChain
A LangChain and TypeSafe conversation on building a harness around Jev.

Same directory, different order: the entries added most recently, rather than the curated order the home page opens in. The date on a card is the day it was added here, not the day its author published it — this directory is newer than most of the work in it.