Let the model make a decision, then let the program take the action.
Small decisions. Big possibilities.
Discover apps, tools and experiments powered by Jev.
Find a little inspiration for your next project.
What is Jev? A decision model from TypeSafe: give it some text and a question with defined options, and it returns an answer your code can read directly (a category, a score or yes/no). How it works
A few good places to start✳
Interesting ideas. Practical possibilities.
✓ keep the useful parts
✓ let the old context go
↳ keep original wording
Give important context more room by deciding what is worth keeping.
Play a round and explore how a small model makes a decision.
Explore projects 7
Jev Ultrafast
browser-use
Turn a goal into browser actions. Jev chooses what to click, type and scroll next.
fast-jev-compaction
tamaratran
Keep useful tool calls and remove stale context, while preserving retained content verbatim.
Undercover
CoolJev
Sit down with five AI players and find the undercover agent in their clues.
QuantDinger
OpenByteInc
An open-source workspace for strategy research, backtesting and paper trading with Jev decisions.
Jev Chat Jarvis
jev-chat
Understand conversation intent and suggest replies. You decide what to send.
jev-seo
AgriciDaniel
Analyze page content and search intent, then turn the findings into suggested improvements.
Between the Lines
CoolJev
Reply in your own words and interpret the intent behind everyday conversations.
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A good idea deserves to be discovered.
One question. A few fresh ideas.
Curious how it works?
Start with one decision.
Learn the basics and run the examples.
A free bilingual guide to your first Jev project.
- Material: a support ticket, a review or the public clues of a game.
- Question: fix the allowed answers first, such as “which team handles this?”
- Result: Jev returns a structured answer with confidence; your code checks it, acts on it or routes it to a person.
An interesting project
often starts with
one small decision.
Your next discovery could inspire someone else.
Found something worth sharing? Keep a suggestion draft.