LongCat 2.5 Preview · Free lane

Generate an SVG of a pelican riding a bicycle. Save it as pelican.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an isometric SVG town: first design a small sprite sheet of distinct buildings (in <defs>), then place 20+ of them on an isometric grid with roads, trees, a river and a bridge. Pick your own theme and palette. Save it as town.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Generate an SVG of a California brown pelican riding a bicycle. The bicycle must have spokes and a correctly shaped bicycle frame. The pelican must have its characteristic large pouch, and there should be a clear indication of feathers. The pelican must be clearly pedaling the bicycle. The image should show the full breeding plumage of the California brown pelican. Save it as brown_pelican.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

create an svg where a dolphin is riding a bicycle while using vlogging with a phone. Save it as dolphin.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Generate an SVG of a pelican riding a car in France with a cat sitting beside it. Background has Eiffel tower. Save it as pelican_car.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an astronaut in a white spacesuit floating untethered above Earth, the visor reflecting the planet and a tether drifting loose. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an empty boxing ring under spotlights with red and blue corners, taut ropes, a stool in each corner and a pair of gloves hanging. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a large cargo ship stacked with colourful shipping containers sailing across the ocean, with a tugboat guiding it. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a messaging app screen with alternating grey and blue speech bubbles, a timestamp, a typing indicator and a text input bar with a send button. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a top-down map-style illustration of a city park with a pond, winding paths, a playground, trees, benches and people walking dogs. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a rainy cyberpunk alley with neon signs in invented glyphs, steam vents, a hovering drone and a figure in a glowing jacket. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a stylised film-noir detective in a trench coat and fedora under a streetlamp in the rain, his long shadow on the wet pavement. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a green dragon coiled around the top of a stone tower, wings folded and smoke curling from its nostrils, under a stormy sky. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a silver and black 35mm rangefinder film camera in front view with a lens, shutter dial, film advance lever and leather strap. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a four-tier food pyramid infographic with grains at the base, then fruits and vegetables, then proteins and dairy, then sweets at the top, each tier illustrated. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a black grand piano with its lid propped open showing strings and hammers, a bench, and sheet music on the stand. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of the word BOO in thick slime-green drippy horror lettering with drips running off each letter onto the ground below. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a hand holding five different fruits at once: an apple, a banana, a lemon, a bunch of grapes and a strawberry, with every finger visible. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of the word HELLO as a glowing pink neon sign in cursive script mounted on a dark brick wall, with visible tube bends and a soft glow. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a labelled cross-section of the human heart showing the four chambers, valves, aorta, vena cava and pulmonary artery, with red and blue blood flow arrows. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a front-view human skeleton with major bones labelled, including the skull, clavicle, ribcage, spine, pelvis, femur, tibia and humerus. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a ruby-throated hummingbird hovering with blurred wings, its long beak dipped into a pink trumpet flower, iridescent green back feathers. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a repeating geometric star tiling of interlaced eight-pointed stars and crosses in deep blue, turquoise and gold. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of three carved jack-o'-lanterns with different faces glowing on a porch step at night, with fallen leaves and a black cat. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a five-storey Japanese pagoda with red wooden beams and curved tiled roofs, framed by blossoming cherry trees. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a close-up of a red seven-spot ladybug crawling along a dewy green leaf, with a single water droplet magnifying the leaf veins. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an overhead view of a cup of latte with a rosetta leaf drawn in the foam, on a saucer with a small spoon and a biscuit. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a logo for an invented coffee roaster called Ember and Bean, with a coffee bean forming a flame and the name in a clean serif below. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a logo for an invented sushi bar called Koi Wave, a koi fish curling into a wave inside a red circle, with a brushstroke wordmark. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a calm alpine lake at dawn mirroring snow-capped peaks, with pine trees on the shore and a wooden rowboat tied to a dock. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a giant panda sitting upright chewing a bamboo stalk held in both paws, surrounded by a bamboo grove in flat vector style. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a red fox mid-pounce diving headfirst into a snowbank, tail streaming behind, with pine trees and falling snowflakes in a muted winter palette. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a beige 1980s desktop computer with a chunky CRT monitor showing a green command prompt, a keyboard and a floppy disk beside it. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of layered green rice terraces stepping down a mountainside, water in the paddies reflecting the sky, with a farmer in a conical hat. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an old black cast-iron sewing machine with gold floral decals, a spool of red thread on top and fabric passing under the needle. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a stylised footballer performing an overhead bicycle kick in front of goal, the ball just leaving the boot and the goalkeeper diving. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a classic black steam locomotive in side view pulling a coal tender, with red wheels, connecting rods and a plume of white steam. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a wooden board with an assortment of sushi: salmon nigiri, tuna maki rolls, a shrimp piece, pickled ginger, wasabi and chopsticks. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a red suspension bridge with two tall towers and draping cables emerging from a thick bank of fog over the water. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an open red multi-tool pocket knife with blade, scissors, screwdriver, corkscrew and bottle opener all fanned out, shown in a clean flat style. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of an old parchment treasure map of a small island with a dotted path, a skull rock, palm trees, a compass rose and a red X marking the treasure. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a record turntable with a spinning vinyl record, the tonearm resting on the grooves and the record sleeve leaning beside it. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a Voronoi diagram of about forty irregular cells filled with a smooth gradient from deep teal to lime, with thin white borders. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a labelled water cycle diagram showing evaporation from the ocean, condensation into clouds, precipitation over mountains and runoff back to the sea, with arrows. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create an SVG illustration of a rounded weather widget card showing 18 degrees, partly cloudy, a sun peeking behind a cloud and a five-day forecast row with small icons. Save it as image.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Create code for an SVG of a whale flying through the clouds. Save it as whale.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.

Build a GPU-accelerated fluid simulation in a single HTML file using WebGL, no external libraries. Dragging the mouse or a finger should push colorful dye through the fluid, with a soft glow. Make it look stunning and run smoothly.

Build it as a self-contained index.html in the current directory, with WebGL/WebGL2 shaders you write yourself; no libraries and no CDNs; interactive with mouse or touch input. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot.

Build an interactive Three.js scene of a single red Japanese maple (momiji) standing on a small rocky island in a still, misty lake. Its leaves are deep autumn red and orange; some drift down onto the water, where they float and leave gentle ripples. Low mist hangs over the lake and soft mountain silhouettes fade into the haze behind. A stone lantern stands beside the tree with a warm flame inside. Let the viewer interact: dragging across the water stirs the floating leaves and sends ripples through them, clicking the lantern makes it swing so its light sways across the water, and a dial turns the time of day from dawn through day and dusk to moonlight, changing the sky, the colour of the mist, the lighting and the reflections, with the moon and its reflection at night. Keep the mood calm and painterly, with a light wind moving the branches. Everything is built in code from Three.js geometry, shaders and materials; no external models or textures. Build it as index.html (plus any local asset files you create) in the current directory. Three.js may load from a pinned CDN. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot.

Build an explorable tropical island in Three.js. The island has white sand beaches, palm trees, a green hilly interior and a small fishing village of wooden huts with thatched roofs, joined to the sea by a long wooden pier with boats moored alongside. The ocean around it is animated, with waves, foam along the shore and clear shallow water over a reef where fish swim among corals and sea plants, fading to deep blue further out. Let the player switch between modes: walk on the island, swim at the surface, dive underwater (with underwater fog and caustic light), sail a small boat around the island, and fly a free camera. Add a time-of-day panel with a slider that moves the sun from morning through sunset to night, changing the sky, lighting and water colours, with stars and lit windows in the village at night. Show the controls on screen. Everything is built in code from Three.js geometry, shaders and materials; no external models or textures. Build it as index.html (plus any local asset files you create) in the current directory. Three.js may load from a pinned CDN. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot.

Build a conceptual X-16 engine in 3D with Three.js: four cylinder banks, one crankshaft and exposed mechanics inspired by experimental multi-bank engine architectures. Make it animate (pistons, rods and crank moving in sync) with orbit controls. Everything is built in code from Three.js geometry, shaders and materials; no external models or textures. Build it as a single self-contained index.html in the current directory. Three.js may load from a CDN or be vendored. You may serve it locally and open it in headless chromium (/usr/bin/chromium, software WebGL, no GPU) to screenshot and inspect your own output, and iterate on your own before finishing. Close any browser you open as soon as you've taken your screenshot.