Playground
Jev
Jev is a different kind of AI model. It doesn't write anything. Ask it typed questions (pick one of these, how likely is this, where does this sit on a scale) and it answers with calibrated probabilities, in a few hundred milliseconds, for a tiny fraction of a cent. I use it all over this site wherever a decision is needed rather than prose. Try it.
Try it
Would I back it?
Describe a startup in a sentence or two. Jev sorts it the way I would: which of my themes it fits, what stage it's at, and whether the pitch is clear.
The playground is switched off for the moment.
Where Jev works on this site
Anything that needs a decision rather than writing. Text still comes from a language model; Jev decides what's worth writing and checks what was written.
Posts tied to predictions
Every new post on X is checked against my open predictions: is it about one, and is it evidence for or against? It also spots posts that make a call without saying "Prediction:".
0 posts tied so far, 0 possible calls spotted
Thesis check
Each day's notebook notes and company posts are weighed against why I own each company. The tally sits beside "Why I own it" on every company page.
21 checked: 6 support, 1 challenge
The notebook, checked
The AI-written notes are checked before they go live: never buy or sell advice, and backed by their sources. Each is weighted, and the weightiest becomes the note of the week.
6 notes checked and weighted
Tags and companies
Posts get tags from the site's list, and a link to any company they actually discuss, for "What I've written about it" on the company's page. Hand-picked tags are never touched.
25 posts tagged, 1 linked to companies
Short posts worth keeping
Long posts on X come to the blog automatically. Shorter ones do too when Jev is sure they stand on their own as a piece of writing.
Checked on every new post
Ask my writing
Before a question costs a model call, Jev reads the excerpts the search found, drops the ones that don't help, and answers "I haven't written about that" for free when none do.
Sign-ups screened
Sign-ups that look like junk are set aside for a look rather than mixed in with the list. Nothing is thrown away.
Jev is made by TypeSafe. Its answers are probabilities and can be wrong; the demos are for fun, not advice. What you type is sent to Jev to answer it, and isn't kept here. Up to 100 tries a day per person, to keep it a playground.
