jev colearn
jev launched three days ago. nobody knows how to use it yet. let's figure it out together.
jev doesn't write text: it hands back a decision your code can act on, with a confidence number attached. with no tutorials or benchmarks yet, the room took real workflows, ran them through jev, and compared what worked.

what it's about
jev is typesafe ai's first model, and it breaks the usual pattern: it doesn't write text. you ask it a question and it hands back a decision your code can act on directly. pick one of many options, give a score, or answer yes or no, each with a confidence number attached. it's fast, it's cheap, and it's built for the thousands of small judgment calls buried inside real software: routing tickets, scoring leads, flagging risky actions, triaging documents.
there are no tutorials, no best practices, and no public benchmarks. typesafe is asking developers to test it on their own use cases. so that's what we'll do.
- 01what jev is
a quick walkthrough of jev and its three primitives: choice, score and yes/no.
- 02build with it
take a workflow you run through an llm today and see if jev does it faster and cheaper.
- 03write mini evals
build your own small evals and compare the results.
- 04share
what worked, what broke, and what surprised you.
who's on
getting there
questions
something else? ask on discord →who should come?
if you're curious about jev, it's for you. no jev experience needed: it had launched three days earlier, so nobody had any yet.
what should i bring?
your laptop, a charger, and curiosity. a workflow you currently run through an llm helps most: the session is about seeing whether jev can do it faster and cheaper.
do i need jev access before i come?
jev is in early access, so join the waitlist at typesafe.ai. you can also reach jev through openrouter. no access yet? come anyway and pair up with someone who has it.
how does registration work?
request to join on luma. every registration is subject to host approval, and the exact address in hsr layout is shared once you're in.
from the day
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