AI Painting

Claude, an AI model, makes each painting here. It writes a program, and the program paints with brush strokes on a canvas of one color. It uses no image generator.

The program records each stroke. Open a painting to play its strokes in sequence. You can also download the playback as a video.

The program must obey these rules:

  • A brush is at least 4 pixels wide.
  • Each stroke moves at least two times the width of its brush.
  • The canvas is at most 1,600 pixels on its long side.
  • A stroke can have any color.
A low view across the wet flat roof of a school under a huge summer sky. The sun is high and white in deep blue, with torn clouds near it, and a great heaped white cloud stands at the right. At the left is a concrete hut with a green door, a red box, a ladder, and a round water tank and an aerial on top. A wire fence goes down the right side and across the far edge, with a town below it. In the middle a schoolgirl stands with her back to us, one hand over her eyes, her long dark hair out on the wind. Her bag is on the floor, and the water at her feet shows her and the sky.
Wonderful Everyday: The School Roof
A giant witch hangs head down in a storm that turns round her. She has a wide blue dress with rows of white frills, long white sleeves, a round white face with no eyes and a red laughing mouth full of teeth, a two-horned striped cap, and great gear wheels above her. Dark shapes of girls dance in the air near her, and pieces of buildings float. A city burns below. A girl with long black hair, a round shield and a pistol stands on a broken roof and looks up at her.
Madoka Magica: Walpurgisnacht
A dry red plain under a red sky with huge dark gear wheels and bars of smoke. Swords without number stand in the plain, to a horizon that glows. Far off, at the left, a low hill is thick with swords against the light. No one is there. In the open ground in front of the hill one long sword stands by itself against the glow. Great swords stand close to us at each side, and their long shadows come toward us.
Fate/stay night: Unlimited Blade Works
At night a huge white whale swims in the air over a plain, out of banks of mist. It has a horn on its brow, a small yellow eye, a heavy lower jaw that hangs open with rows of blunt teeth, long fins with red ends, and a ring of rose light over its back. At the left is the trunk of a tree so big that it goes out of the picture, with its boughs overhead. Under the whale, hundreds of small riders wait in ranks with warm lamps. Near us, a boy in a white and black jacket sits on a black beast that stands on two legs, and looks up. The moon is high at the right.
Re:Zero: The White Whale
At sunset a dead city stands in water under heavy clouds lit from below: round ribbed towers that lean, great curved ribs, and the broken shell of a stadium. On a rocky hill near us, six small figures sit round a camp fire, and one stands alone at the edge and looks at the city. In front, weapons stand together in the rock: a sword with a blade like blue water, a staff with a gold ring, a lance with a red tuft, a great dark blade with a jug, a blue ball and a small doll. Small lights with tails drift in the air.
Final Fantasy X: The Ruins of Zanarkand
A Piplup and a Chimchar stand on wet sand with their backs to us and watch the sun go down over the sea. Red Krabby sit on rocks at the left and blow bubbles, which drift across a rose and violet sky. A cliff in the shape of a shark's head is far off at the right.
Pokémon Mystery Dungeon: The Beach at Sunset
A small sailboat with bright patched sails crosses a dark sea at dusk. A large green planet is in the sky on the left and puts green light on the water. Dark creatures with wings fly from the planet toward the boat. On the right a small bright sun goes down near a rock with a broken tower.
The Book of the Short Sun: On Blue's Waters
Small round worlds are in a bright blue sky above white clouds. A very small man in a red cap hangs from a white dandelion seed in the air. Below him a vine grows from a round grass world with flowers, a tree and a white rabbit. On the right are a red, a green and a yellow apple as large as worlds, and a green caterpillar makes a bridge between two of them.
Super Mario Galaxy: Gusty Garden Galaxy
A sword with a blue-violet guard stands point down in a low stone platform in a green forest glade, and a shaft of light falls on it. Behind it is a very large tree with a face, mossy roots and pink blossom. Small wooden creatures with leaf masks stand in the grass, and white and blue flowers grow near the platform.
The Legend of Zelda: Korok Forest
Three small travelers stand on a mossy ledge with their backs to us. In front of them is a pale plain in bright haze. Ruined towers lean, lie flat and hang point down from above. At the right, a trunk of twisted cords holds up a cap so wide that it leaves the picture. Small lamps hang in its shade.
Made in Abyss: The Capital of the Unreturned
In heavy rain a man in a long coat stands with his back to the viewer and aims a pistol down an empty street. Far along the street a fair-haired man in a dark suit stands and holds a finger to his forehead. Old houses line the street, and a church tower stands at its end under dark clouds.
Monster: Ruhenheim
In a dark hall at night a man in a white jacket points up at a golden figure of a woman on the stairs. Golden butterflies fly out of a large portrait above the stairs and make the shape of the woman. Lightning shows in a tall window, and the floor has black and white squares.
Umineko: The Witch in the Hall
A tall man in a blue robe and a white horned mask stands on a grass ridge at sunset and holds a closed iron fan. Beside him is a woman in a long pale dress with a white animal ear and a thick white tail. A small girl rides a white tiger ahead of them. A wooden fortress with thatched roofs is in the valley below.
Utawarerumono: Above Tuskur
At sunset a humanoid war machine flies low over a burnt plain on blue jets and raises a long sword. It fires a gun at a giant creature that stands on ten long legs. Red and green creatures run across the plain, lasers cross the dark red sky, and tall spires stand on the horizon.
Muv-Luv Alternative: Against the BETA
At sunset a huge cone-shaped castle floats above a sea of clouds and breaks apart. Large pieces fall from its base toward the clouds, and small blue lights rise around it. A man in black and a woman with long hair sit side by side on a glass floor in the foreground and watch.
Sword Art Online: The End of Aincrad
At dusk a man in a green coat and a three-cornered hat stands at the edge of a cliff with his arms out. A second man falls backward off the edge in front of the low sun, and his hat and papers fly away. A small gold statue glows on a crate near a tent, and a ship is at anchor on the sea.
The Case of the Golden Idol: The Fall
At sunrise a man in green armor and a white cape stands on a grassy hill with his back to the viewer and holds up a dark sword. A woman with pink hair stands beside him, and clay creatures lift their arms in the grass. The sun rises behind a snow mountain, and a Japanese castle stands among cherry trees above two armies on a plain.
Sengoku Rance: Before the Battle
A red giant sun above a forested valley at night. A traveler sits at a campfire on a cliff beside a small spacecraft, and planets hang in a sky of star trails.
Outer Wilds: The Last Evening
Seven rows of brush strokes in different colors across three vertical stripes. Below them are an area of orange and purple strokes and a gradient from blue to cream.
Brush Test