Sketch to image AI
Draw the idea, even badly. Pick a style, add a few words if you like, and an AI image model paints a finished picture that keeps your layout.
Render your sketch
Six renders per hour. Your drawing is sent once to the image model via Vercel AI Gateway and not stored by SketchWith.
Getting sketches the model understands
- Close your outlines. A circle that meets itself reads as an object; an open arc reads as a line.
- Big shapes first. Lay out the main objects large and roughly where you want them. The model keeps the placement more faithfully than the detail.
- Say what it is. Five words of description (“a cat asleep on a windowsill”) remove most of the guesswork.
- Skip lettering. Image models still garble small text. Add labels afterwards on the whiteboard if you need them.
- Iterate. Change the style or the description and render again; the same sketch can become a product mock-up, a storybook page or a pixel sprite.
Need the board’s words rather than a picture? The AI whiteboard reads your sketch and writes notes instead.
Questions people ask
How does sketch to image AI work?
Your drawing is flattened to a PNG on white and sent, with the style you picked and your optional description, to an image model through Vercel AI Gateway. The model uses the sketch as a layout guide and paints a finished image that keeps the same composition.
Which AI model does it use?
OpenAI’s gpt-image-2.5-flare, called through Vercel AI Gateway. It accepts an input image plus instructions, which is what lets it follow your sketch rather than inventing a new picture.
Is my sketch stored?
SketchWith doesn’t store it: the image is sent once to generate the result and nothing is saved on our side. Your drawing itself stays in your browser’s local storage. The model provider processes the request under its API terms.
Why doesn’t the result match my sketch exactly?
The model treats the sketch as a strong hint, not a tracing. Bold, closed outlines and a short description (for example “a red bicycle leaning on a fence”) give the most faithful results. Tiny details and text are the first things to drift.
Is there a limit?
Yes: six images per hour per visitor, because each render costs real money. The drawing board itself has no limit.