These are 22 prompts built for Krea Realtime — the live canvas where you draw shapes, type, or drop an image on the left and watch a finished render update on the right in well under a second. The sketch carries the composition; the prompt only tells the model what the shapes mean and what style to apply. That's why every prompt here is short — a phrase or a few words — paired with a quick note on what to sketch or upload.
Each item gives you a one-line Sketch to draw or drop on the canvas, the exact short prompt to type, and a Why it works line. Model, strength, and aspect ratio are UI settings — start strength near the middle and drop it when the output drifts from your layout. For the full method, keep the best Krea prompts roundup open, and grab the Krea prompt cheat sheet for the wording you'll reuse.
Sketch-to-image
Five prompts that turn the roughest possible drawing into a finished image. Draw the shape, type a few words, and let Realtime fill in the rest. Refine the sketch to tighten the result.
1. Turn a Box Sketch Into a Modern House
Sketch: A few rectangles for the house, a horizontal line for the ground, a small green blob for trees.
modern concrete and glass house, dusk, warm interior lightsWhy it works: Your boxes set the massing and footprint; the short prompt only supplies material and mood, so Realtime keeps your shapes and dresses them.
2. Scribble to Mountain Landscape
Sketch: A jagged line across the top for peaks, a wavy blue band below for a lake, green at the base.
snowy mountains, alpine lake, golden hour, photorealWhy it works: The jagged line reads directly as a ridgeline and the blue band as water, so the model places terrain exactly where you drew it.
3. Stick Figure to Full Character
Sketch: A simple stick figure with a circle head, in the pose you want.
knight in worn steel armor, standing, full body, cinematicBest for: Locking a pose first — the stick figure fixes the stance so you can re-prompt the costume without the body moving.
4. Shape Blocks to City Skyline
Sketch: A row of tall rectangles of different heights along a baseline; a flat band above for sky.
futuristic city skyline, blue hour, glass towersWhy it works: Rectangle heights map straight to building heights, so you control the skyline silhouette with the blocks and let the prompt add glass and light.
5. Color Blobs to Still Life
Sketch: A few round color blobs on a flat surface line — red, yellow, a tall grey shape for a vase.
still life, fruit and ceramic vase, soft window light, oil paintingBest for: Composition studies — move the blobs around and the objects rearrange live until the layout balances.
Concept & mood ideation
Five prompts for fast idea and mood generation. Loose color blocks are enough; re-prompt the style and light to spin variations on one composition in seconds.
6. Mood Board From Loose Color Blocks
Sketch: Three or four flat rectangles of the palette you're chasing — teal, rust, cream.
cozy autumn interior, warm light, film photographyWhy it works: Realtime reads the color blocks as the palette, so the render inherits your mood before a single object is drawn.
7. Sci-Fi Environment Concept
Sketch: A rough horizon line, a big dark shape on one side for a structure, small figures for scale.
alien desert, massive derelict spaceship, two explorers, moodyBest for: Environment concept art — the scale figures tell the model how huge the structure should read.
8. Fantasy Creature Silhouette
Sketch: One bold dark silhouette shape — the body outline of the creature you imagine.
bioluminescent forest dragon, glowing scales, dark backgroundWhy it works: A single filled silhouette gives the model a clean subject boundary, so it renders the creature inside your shape instead of inventing its own.
9. Album Cover Composition
Sketch: A centered subject blob and empty space top and bottom for text.
lone figure on a neon-lit street, rain, synthwaveBest for: Cover layouts — keeping the subject centered with breathing room leaves clean areas for a title later.
10. Cinematic Key Frame
Sketch: A wide frame with a small figure lower-left and a large empty sky area.
lone traveler, vast canyon, dramatic sunset, anamorphic, cinematicWhy it works: Placing the figure small and low sets a wide, epic scale that the words "vast" and "cinematic" then reinforce.
Product & industrial-design mockups
Four prompts for fast product ideation. Draw the silhouette or drop a rough outline, keep the prompt to material and lighting, and swap materials live to compare options.
11. Sneaker Design From an Outline
Sketch: A side-profile outline of a sneaker — sole, upper, a couple of panel lines.
running sneaker, white knit upper, orange sole, studio product shotWhy it works: The outline fixes the silhouette and panels; swapping the color words re-skins the same shoe instantly for a lineup.
12. Handheld Gadget Mockup
Sketch: A rounded rectangle with a small circle for a lens and a line for a screen edge.
sleek handheld device, matte aluminum, minimal, studio lightBest for: Concept hardware — the rounded rectangle sets proportions, and "matte aluminum" versus "glossy plastic" flips the whole look on re-prompt.
13. Perfume Bottle Silhouette
Sketch: A symmetrical bottle outline with a small cap rectangle on top.
luxury perfume bottle, frosted glass, gold cap, soft gradient backdropWhy it works: A clean symmetrical outline gives Realtime the exact form factor, so it focuses entirely on material, glass, and lighting.
14. Chair Concept From a Wireframe
Sketch: A rough side view of a chair — seat, back, legs as simple lines.
mid-century lounge chair, walnut and tan leather, studioBest for: Furniture ideation — lower the strength so Realtime respects your line proportions and only dresses them in wood and leather.
Architecture & interiors
Four prompts for rough-ins. Block the room or facade with rectangles, or drop a photo of a real space, then re-prompt materials and light to redesign live.
15. Living Room From a Floor Box
Sketch: A perspective box for the room, a rectangle for a sofa, a square for a rug, a line for a window.
scandinavian living room, oak floor, linen sofa, bright daylightWhy it works: The box gives Realtime the room's perspective and the furniture blocks their placement, so the render matches your layout.
16. Building Facade From Rectangles
Sketch: A grid of rectangles for windows on a large flat front, a line for the entrance.
modern apartment facade, brick and timber, evening, warm windowsBest for: Elevation studies — the window grid stays put while you re-prompt cladding from brick to concrete to timber.
17. Kitchen Rough-In
Sketch: An L-shape for counters, rectangles for upper cabinets, a box for an island.
modern kitchen, matte green cabinets, marble counters, brass fixturesWhy it works: The counter and cabinet blocks lock the layout, so material re-prompts read as finish swaps on a fixed kitchen.
18. Restyle a Room Photo Live
Sketch: Drop a photo of your actual room onto the canvas as the base.
same room, japandi style, warm wood, soft neutral paletteBest for: Redesigns — dropping a real photo keeps the room's geometry while the prompt restyles surfaces and mood in real time.
Character & style exploration
Four prompts for exploring people and art styles. Keep one sketch on the canvas and re-prompt the outfit, medium, or style word to generate a matched set of variations.
19. Character Portrait From a Head Circle
Sketch: A circle for the head, a line for shoulders, two dots for eye placement.
weathered fisherman, deep wrinkles, soft rim light, portraitWhy it works: The eye dots and head circle fix framing and gaze, so re-prompting age or expression keeps the same portrait crop.
20. Outfit and Style Swap
Sketch: A standing figure outline; keep it while you edit only the prompt.
same figure, cyberpunk streetwear, neon accents, full bodyBest for: Wardrobe exploration — hold the pose and swap "streetwear" for "medieval armor" or "business suit" to see the same body redressed instantly.
21. Anime to Photoreal Style Test
Sketch: A loose head-and-shoulders sketch of a character.
young woman with short hair, photoreal, soft studio lightWhy it works: Because the sketch holds the features, swapping "photoreal" for "anime" or "3D render" shows the exact same character across mediums.
22. Same Pose, Many Art Styles
Sketch: Any single subject sketch — a figure, a face, an object.
watercolor illustration, loose brushwork, muted paletteBest for: Style boards — keep the sketch and cycle the medium word (oil, ink, low-poly, pixel art) to build a one-subject style comparison in seconds.
When a frame looks right, capture it and run it through Krea's Enhancer for a high-resolution final — Realtime's preview is low-res by design. For deeper detail work and photoreal finishing, see the Krea photorealism prompts, and keep the best Krea prompts roundup handy for the underlying method.
Frequently Asked Questions
What is Krea Realtime and how is it different from normal generation?
Realtime is a live canvas: you draw shapes, type, or drop an image on the left side, and Krea renders a finished image on the right that updates in well under a second as you work. Normal text-to-image generation is a one-shot round trip — you write a prompt, wait, and get a batch of results. Realtime is interactive and continuous. You steer the output by adjusting the sketch and the prompt while watching the result change, which makes it far faster for exploring compositions, framing, and layout than typing a new prompt each time.
Why do short prompts work better in Realtime?
In Realtime, your sketch carries most of the composition — where things sit, how big they are, the rough colors. The prompt only needs to tell the model what the shapes mean and what style to apply. A short phrase like "red sports car, studio light" is enough because the canvas already supplies the layout. Long paragraphs slow you down and pull the model in several directions at once; you lose the tight sketch-to-result loop that makes Realtime useful. Type a few words, watch the result, then refine the words or the sketch.
How good does my sketch need to be?
Rough is fine. Loose strokes, simple shapes, and flat blocks of color are enough to guide Realtime — a box for a building, a circle for a face, a scribble of green for foliage. The model reads placement and color, not draftsmanship. The more you refine the canvas, the more precise and predictable the output becomes, so start rough to find the composition, then tighten the shapes and colors where you want more control. You never need clean line art.
Can I change the prompt live to explore variations?
Yes, and it's the fastest way to explore. Keep the same sketch on the canvas and edit the prompt word by word — swap "daytime" for "night," "concrete" for "timber," "sedan" for "SUV" — and the render morphs to match in real time. Because the composition stays locked by your sketch, you get true variations on one idea rather than random new images. This live re-prompting is how art directors test materials, moods, and styles in seconds.
What aspect ratio and strength should I use?
Set the aspect ratio to match your final use before you start — 16:9 for scenes and interiors, 1:1 or 4:5 for products and characters, 3:2 for general shots — since changing it mid-session reflows the composition. Strength (how heavily the AI reinterprets your canvas) is the key dial: low strength stays faithful to your sketch's shapes and colors, high strength lets the model take more creative liberty. Start around the middle, lower it when the output drifts from your layout, raise it when you want richer detail.
How do I export or upscale a Realtime result?
When a frame on the canvas looks right, capture it and send it to Krea's Enhancer (upscale) to render a high-resolution, detailed final version — Realtime prioritizes speed, so its live preview is lower resolution by design. The Enhancer adds resolution and fine detail while keeping the composition you locked. For production work, treat Realtime as the ideation and framing stage, then finish the chosen frame through Enhance or a standard high-quality image model.
Is Realtime good for real client work or just doodling?
Both. It's genuinely used for concept ideation, product and industrial-design mockups, architecture and interior rough-ins, character and style exploration, and live art direction in front of a client. The workflow is: sketch and re-prompt in Realtime to land the composition and mood fast, pick the best frame, then upscale it with the Enhancer for a presentable result. It replaces hours of typing-and-waiting with a few minutes of drawing and steering.