Motion

Draw anything. Make it move.

An agent can draw what it means, mid-anything: a concept, or the work it is doing with you. The model writes the film as code against a small drawing kit, scene by scene, so the first scene plays in seconds. No templates. Each ask below was made twice; the two runs are never alike. Tap one to play it.

40films, 20 asks twice
5.3 sto the first scene, median, one at a time
27 sa film, median
$0.076to make one, median

The kit, the player and the test set are in the repo (site/public/demo/motion, site/scripts/motion). Spec: MOTION. Try your own ask in the playground.

Draw how it works

Ideas, machines, history, money. Built part by part, labeled, with the camera moving in.

Draw how a heart pumps blood.

23 s film, scene 1 in 8.4 s · 27.5 s film, scene 1 in 6.6 s

Show how a four-stroke engine works.

33 s film, scene 1 in 7.2 s · 31 s film, scene 1 in 5.9 s

How the Roman Empire grew and then fell, 27 BC to 476 AD.

33 s film, scene 1 in 9 s · 31.5 s film, scene 1 in 5.5 s

Roast a lemon-garlic chicken: the steps and the timing.

26.5 s film, scene 1 in 5.9 s · 27.5 s film, scene 1 in 7.4 s

A 20 minute no-equipment workout. Show the moves and the rhythm.

26.5 s film, scene 1 in 5.6 s · 26.5 s film, scene 1 in 4.9 s

A business idea: a monthly subscription box of toys for rescue dogs. Show the model and where the money comes from.

21.5 s film, scene 1 in 9 s · 29 s film, scene 1 in 5.8 s

How to jump-start a dead car battery safely.

29.5 s film, scene 1 in 4.3 s · 24.5 s film, scene 1 in 6.6 s

Compare renting and buying a home over 10 years.

28.5 s film, scene 1 in 5.9 s · 34.5 s film, scene 1 in 6.2 s

Show how US federal tax brackets work, with a $90,000 income.

27.5 s film, scene 1 in 11.4 s · 28.5 s film, scene 1 in 11.9 s

Show how many people live on each continent and which one is growing fastest.

21.5 s film, scene 1 in 5.3 s · 21.5 s film, scene 1 in 5.7 s

Show the work

What changed, where we are, how two parts connect, a bug and its fix, a sketch of an idea, a day. The things an agent and a person explain to each other mid-project.

I changed the settings screen today: Log out moved to the bottom, a Dark mode switch was added, and the Help row was removed. Show what changed.

14.5 s film, scene 1 in 5.9 s · 26 s film, scene 1 in 3.7 s

Show the plan: Monday design the new onboarding, Tuesday and Wednesday build it, Thursday test with 5 users, Friday ship. We are at Wednesday.

22 s film, scene 1 in 5.2 s · 21.5 s film, scene 1 in 3.1 s

Show how the pieces fit: phone app, gateway, agent, model, database. A message goes from the phone to the model and back.

26.5 s film, scene 1 in 3.7 s · 32.6 s film, scene 1 in 16.3 s

A bug and its fix: the app crashed when a thread had more than 400 rows because it loaded all rows at once. The fix loads 50 at a time. Show the bug and the fix.

27 s film, scene 1 in 4.5 s · 21 s film, scene 1 in 8.9 s

Status of the launch: 14 of 20 tasks are done, 3 are blocked on App Review, 3 have not started. Launch is Friday. Show where we are.

26 s film, scene 1 in 7.4 s · 32 s film, scene 1 in 7.1 s

A quick sketch of an idea: a tiny robot that waters houseplants and tells you when its water tank is low.

27 s film, scene 1 in 6.4 s · 27.5 s film, scene 1 in 5 s

Show how two parts connect: the checkout page sends an order to the payments service, which confirms with the bank and then tells the warehouse.

14.5 s film, scene 1 in 5 s · 27.5 s film, scene 1 in 7.3 s

Explain what I did today: I answered 12 customer emails, fixed 2 broken links on the website, and drafted next week's newsletter. Show my day.

27.5 s film, scene 1 in 3.3 s · 28 s film, scene 1 in 5.7 s

A feeling, a mood

No diagram to draw. Just the thing itself, moving.

What it feels like when anxiety builds and then lets go.

32 s film, scene 1 in 5.5 s · 27.5 s film, scene 1 in 2.9 s

A mood: a calm Sunday morning, rain on the window, a warm cup of coffee.

26.5 s film, scene 1 in 3.9 s · 26 s film, scene 1 in 9 s

Try Yui, or help build it

Get the alpha

The MVP is done and Yui is in alpha, open to anyone with an iPhone on iOS 26. Download it on TestFlight, then connect the agent you already run: Hermes, OpenClaw, Claude Code, a model you run, or anything behind a webhook.

Star it on GitHub

Yui is open source under Apache 2.0. Star the repo, open an issue, or send a pull request.

Lend your agent

Spare tokens on Claude or ChatGPT Codex? Your agent can pick a card off our backlog and open a pull request. Yui@home, like SETI@home.

Want a hand getting in?

You don't need this to try Yui: the alpha on TestFlight is open to anyone with an iPhone on iOS 26. Leave your details if you have no agent yet, want help connecting one, or would rather Apple email you the invite.

  1. Yui emails you a link to confirm your address.
  2. We read your request, and reach out if you asked for help.
  3. Apple emails you a TestFlight invite.
  4. Open it on your iPhone, install Yui, and sign in with Apple.

We use this only to get you into Yui. Privacy.