Sketch to Image AI

Example prompts for Sketch to Image

The same prompts are behind the “Try an example” button in the input box; each click loads the next one.

• Inked comic

  Finished as an inked comic panel, bold black outlines, flat cel colors, halftone shading

• Soft pastel

  Finished in soft pastel on textured paper, gentle gradients, muted palette

Real results from Sketch to Image

A real result from this tool. The line drawing on the left was generated with Text to Image; the finished piece on the right is this tool's output. Drag the handle to compare.

After

Before

Drag to Compare Before & After

Why Sketch to Image on AI Image Tools

• Your drawing stays the drawing

  The instruction keeps the composition, proportions and every element in the sketch. It finishes your piece rather than replacing it.

• Name the medium

  Inked comic panel, soft pastel, watercolor wash, oil on canvas. Two example prompts sit above the box.

• From doodle to print

  Finish the piece here, then double its size with the Upscaler for a print-ready file.

• Model choice

  Kontext is fast and faithful to the lines; Nano Banana follows a long description of the finish more closely.

Every image model in one place

Pick any of these from the Model menu above; the price is shown before you generate. Each name links to what that model is good at. Compare every tier.

• Z-Image Turbo

  Alibaba · cheapest and fastest, text-to-image only

  1 credits per image

• Seedream 5 Pro · 1K

  ByteDance · same model as 2K at half the price

  9 credits per image

• GPT Image 2.5 Flare · 2K

  OpenAI · same price as Sunburst, tuned for speed and volume

  13 credits per image

• Qwen Image 3 · 2K

  Alibaba · strong at readable text inside the image

  6 credits per image

• Nano Banana

  Google Gemini 2.5 Flash · fastest, cheapest

  5 credits per image

• Nano Banana 2.1 · 1K

  Google · newest Nano Banana, sharper text, banner ratios

  10 credits per image

• Nano Banana 2.1 · 2K

  Google · same model at 2K

  15 credits per image

• Nano Banana 2.1 · 4K

  Google · for print or heavy cropping

  23 credits per image

• Ideogram V3 · Turbo

  Ideogram · text inside the image, fastest tier

  5 credits per image

• Ideogram V3 · Balanced

  Ideogram · text inside the image, posters and logos

  9 credits per image

• Ideogram V3 · Quality

  Ideogram · text inside the image, highest detail

  13 credits per image

• FLUX.1 Kontext

  Black Forest Labs · fastest, about 5s per image

  5 credits per image

• Seedream 5 Lite

  ByteDance · good at Chinese text and posters

  7 credits per image

• Seedream 5 Pro · 2K

  ByteDance · most photorealistic, highest detail

  18 credits per image

• GPT Image 2 · 2K

  OpenAI · good with text in images, half the price of 2.5

  7 credits per image

• GPT Image 2 · 4K

  OpenAI · for print or heavy cropping

  10 credits per image

• GPT Image 2.5 · 2K

  OpenAI · newest, better instruction following

  13 credits per image

• GPT Image 2.5 · 4K

  OpenAI · newest, highest resolution

  20 credits per image

Sketch to Image specifications

Input

A drawing: photo of paper, scan or digital sketch, up to 10 MB

Prompt

Describe the finished look: medium, palette, mood

Models

FLUX.1 Kontext by default; Nano Banana, Nano Banana 2.1, Seedream 5 Lite / Pro, GPT Image 2 / 2.5 and Ideogram V3 selectable

Sizes

Same as input, 1:1, 4:3, 3:4, 16:9

Output

PNG or JPEG depending on the model, saved to My Creations

Cost

5 to 20 credits per image, depending on the model

Time

About 25 seconds with FLUX.1 Kontext; Seedream around 50 seconds, GPT Image about a minute

Free plan

10 credits on sign-in — 10 images on the default model; free downloads carry a small watermark

How to use Sketch to Image

1. Step 1

   Upload the drawing

   Good contrast between lines and paper helps the model read the composition.

2. Step 2

   Describe the finish

   "Finished as an inked comic panel, bold outlines, flat cel colors".

3. Step 3

   Generate, then upscale

   Pick the best version and run it through the Upscaler if it is going to print.

Get a better result

A few choices before you upload change the output more than any setting on this page.

• Contrast between line and paper

  Photograph the drawing in even light, or scan it. Faint lines give the model room to invent shapes you did not draw.

• Say what has to stay

  Add “keep every element and the exact layout” when the drawing is precise. Leave it out when you want the model to take liberties.

• Upscale for print

  The finished piece comes back around 1K. Double it before printing. Image Upscaler

How to write a prompt for Sketch to Image

• Medium

  Ink, pastel, watercolor, gouache, oil, digital painting.

• Line and color

  "Bold black outlines, flat cel colors" or "no outlines, soft blended gradients".

• Mood and palette

  Warm and muted, cold and high-contrast, pastel.

• What to keep

  "Keep every element and the exact layout of the sketch" when the drawing is precise.