What's new
What changed, newest first.
Datum is where you make things with AI, learn how it works, and show what you made. Everything under Shipped works today. Datum is in open beta, so some of it will still change.
Shipped
We took down the rankings and the rooms that only looked like AI
For three days the home page showed a ranking, a live feed and profiles of people who do not exist, and two rooms called themselves AI without asking a model anything. They are gone, with the Arena and the leaderboard. Every place you can write to Datumly now checks first for words that say you may be in danger, and points you to people who can help. Make now says exactly what it sends from a spreadsheet, and lets you send the column names only. Datum asks before it changes or animates a picture of a real person. Practice deals its answers in a shuffled order, and a seal counts only the calls you got right.
Your week on the Table, as one card
Keep now has a This week plate under your calibration curve: Monday to Sunday as seven columns of five squares, what you said against what landed across the week, and one plain sentence about it. A day you did not play is a row of small ticks, nothing more. Copy pastes it as seven short rows of squares, and Share sends a picture of it. Neither carries an answer, and the link opens the day's Table, not your page. After a hand, See your week takes you there.
Four quiet sounds, and season one on the Table
A new switch in Keep, beside touch feedback and off until you turn it on, adds four short sounds, only when you press something: the stake chip settling on a stop, a card turning over, a thing kept, a page sent. On the Table, the five squares of a finished hand now draw in one by one and the calibration line draws under them, with a clay mark in any square the cards went against. Season one, Bench Mark, starts on Monday 26 October 2026: the Table names the week, and Keep shows you how many hands you have played this season. Only you see that line.
The home page builds something while you look
The front page now shows the Workshop at work: it types an ask, like an invitation to Saturday's garden party, and the finished page appears beside today's Table. It plays back a kit, so no model runs and nothing is spent. Click into the box at any time and it stops and waits for your words. With reduced motion on, it shows one finished page and holds still.
Datum for Teams, for three pilot teams
A team gets seats, a team table its members sit at without a code, and one pooled line of how sure the team said it was against how often it was right, by month. A month or track with too few hands or people is held back. An admin sees the roster and can export the line and the roster as a CSV, and never sees one person's calls. A person's calls count from the day they join and stop when they leave. $15 a seat a month, billed annually, set up by arrangement.
The Datum Index, and the switch that feeds it
A new switch in Keep, off until you turn it on, counts your Table hands toward the Datum Index: a monthly plate of where people over-trust and under-trust an assistant's work, by kind of work and by week of practice. It stores totals, never a call or a name, and holds back any reading built from fewer than 20 hands or 10 people. Until a month clears that bar, /index shows the method and says the first plate is being gathered.
Trace, with its lineage
Every piece on Trace draws where it came from and what it led to, as a small survey plate: the pieces before it up to the first, and the remixes after it, newest first. Three things you can do with a piece: keep it, remix it, send it. Write to the maker opens a message with the piece attached, and every conversation has mute, report and block on it. Trace shows newest first or shuffled for the day. Only the maker sees how many kept or remixed a piece.
Datumly remembers, if you ask it to
One switch in Keep, off until you turn it on. Datumly then keeps your calibration and the names of pages you made on this device, and says one sentence about your own gap at the end of a hand and after a build. Export it as a file or erase it here and on your account. Each lesson also ends with one Table call on what it taught, and a Table card names the lesson it leans on.
Ten kits for things people send
Under All kits in the Workshop, a new shelf of ten pages made to send: an invitation, a small game for a kid, a list for a team, a quiz, a budget, a poker odds trainer, a paper-trading journal, a countdown, a seating chart and a decision helper. Each opens finished, with no model and nothing spent. Send now sits right under the finished page instead of inside More.
The Workshop you can see
A change you ask for shows exactly which lines it touches before it applies, with Accept and Undo. A slider walks every version of a page. Each build carries a receipt: what Datumly did, where it was unsure, and what it left out. You can also say the page instead of typing it.
The Table on your home screen
Add Datum to your home screen and it opens straight to the Table, full screen, on the evening ground. The day's hand is kept on the device, so it plays without a signal. After your first hand, a single line says how to add it, once, and then never again.
Heads-up and tables of six
Heads-up lists the people you follow who follow you back and also said yes, with their line for the day next to yours once you have both played. A table of six is opened on Plus and joined with a six-letter code: everyone plays the same hand, and each sees the others' squares and line once their own hand is done. Never the picks, never an order by result.
Datum keeps only what it uses
The job-search rooms, the cohorts, crews, points and the old boards are gone from the app, and their tables are packed away where nothing can read them. What you make, play and keep is untouched, your export still covers all of it, and deleting your account still deletes everything.
The Table: season one, Bench Mark
Six weeks of scheduled hands from Monday 26 October, the same five calls for everyone each day, across summaries, contract clauses, charts, replies, code and citations. A fifth kind of call: spot which of two pieces of work the model wrote. The chip now settles on its stops, the card turns over to show the strong call and why, and Datumly adds one line with a receipt of what left your device. Copy or share the card; it never carries an answer. Your curve on Keep carries on; nothing resets.
Send a page, fenced
Send gives a page you made its own address. It opens in a sealed frame on a separate domain, never on datumly.io, with no network and no way to ask for a password. A quiet bar under it says where it came from, lets anyone make one like it, and lets anyone report it. The card a link unfurls with is drawn from the page itself.
Datum Plus
Twelve dollars a month or ninety-six a year. More AI runs, the Studio past the daily limits, heads-up at the Table with a friend, and your whole calibration history. The first five hundred to join pay eight dollars a month, held for life. The Table stays free forever.
One place that says which model does what
The Workshop writes with Claude Sonnet 5.5 and Datumly's short lines come from Claude Haiku 5.5, named in one file. Every reply's receipt is held to its shape by the model itself. A check that a person is asking can sit on the open doors, and every error carries the release it came from.
The site says only what is true
Pricing now shows Free, Datum Plus and Datum for Teams, and nothing that is not in the code. The Table is free forever. How we use AI is rewritten for Make, Play and Keep with the receipt on every reply. About names who makes Datum. One footer everywhere.
Weekly challenges
One theme a week, with three ways in: a page in the Workshop, a picture in the Studio, or something made anywhere. Switch it on when you share to Trace. Entries show newest first or shuffled, never by how many reacted.
Move it: a picture becomes five seconds of film
In the Studio, any picture you made can be set moving. The film is made through Higgsfield and plays from Datum itself. Two a day without an account.
Ask Datumly why, inside the lessons
Take a wrong turn in a lesson and Datumly explains what happened without handing you the answer. The sampling lesson can also ask a real model to finish a sentence six times.
Two Minds
Ask Claude and Gemini the same question and read both answers side by side, unnamed. Vote before the names turn over.
The next word machine
The Lab opens on a small live model picking its next word, with the chances showing and a dial for how adventurous it is.
The Workshop shows its progress
While a page is being made you can see how far along it is, what the model noted first, and idea chips to start from.
The Studio
Make a picture from a sentence, change it by talking to it, ask what it sees in a photo, or describe a sound and hear it.
The Lab
One front door for learning how AI works by playing with it: twelve live lessons in plain words, a glossary, and every room in the order we would take them.
Teach a computer
Train a tiny model in your browser by sorting avocados, then test it on ones it has never seen. No network, no AI calls.
A guided first build
Never asked an AI to make anything? Pick a card, fill in two blanks, and watch the request become a page.
One name for the AI: Datumly
The helper in every room is Datumly. Datum is the place; Datumly is the AI. Old links still land in the same place.
Being built now
Roadmap, not product. Nothing listed here is for sale.
The Compare lab: one task, two briefs
A new Sandbox room for testing how a change in your brief changes the reply. Pick a work scenario from healthcare, teaching, operations, sales, HR or a small business, or paste your own cleaned notes. Run two briefs side by side with the changed lines marked, run one brief three times to see what shifts between draws, or run one brief across two models with their names hidden until you make your call.
Want to shape what comes next?
We read every message. Tell us what is missing, what is confusing, or what is working.
Email hello@martori.studioIf you prefer the argument to the announcement, read Field Notes, our essays on the category itself.