AI Hub
Turn a doodle into art with AI Sketch to Image
About AI Hub
AI Hub is a small browser-based creative platform whose current tool is AI Sketch to Image: you draw on an in-browser canvas, pick an art style and an image model, and the service turns the doodle into a finished picture. It targets people who have a visual idea but not the drawing or prompting skills to finish it, and it avoids subscriptions entirely by selling one-time credit packs, with the credit cost shown before every generation and nothing charged when a generation fails.
The site is available in English and Simplified Chinese and states that image generation is provided through the official OpenAI API, with the current models listed as gpt-image-2 at 5 credits per image and gpt-image-2.5 at 4 credits per image. There is no photo upload option in the sketch tool; everything starts from lines you draw yourself. Credits are valid for 30 days after they arrive and are shared across the platform's tools.
- •Sketch the subject and layout on the canvas using the pen, eraser, line, rectangle, ellipse and eyedropper tools, with undo, redo and a fullscreen canvas for more room.
- •Choose one of the art styles, set Style Strength, and optionally describe the subject, colors and setting in a prompt.
- •Decide whether Creative Expand is on (the AI completes the form and invents a setting, lighting and story details) or off (the result stays close to your original lines and composition).
- •Select an image model and output ratio, check the displayed credit cost, and create. Results can be downloaded or revisited later in your history.
- •Browser sketch canvas - Drawing tools including pen, eraser, shapes, eyedropper, brush color and size, background options and a fullscreen mode, with no installation.
- •Twelve art styles - Watercolor, Oil, Flat Illustration, 3D Render, Anime, Ink Wash, Pixel Art, Cyberpunk, Sketch, Low Poly, Vintage Poster and Minimalism, with an adjustable Style Strength slider.
- •Creative Expand toggle - Switch between letting the AI build out a full scene and keeping the output faithful to your original drawing.
- •Family drawing mode - A mode for exploring storybook illustrations together, starting from a doodle.
- •Transparent per-use credits - The credit cost appears before each creation and failed generations are not charged.
- •Creation history - Sign in with Google or an email code to keep your balance and past creations across devices.
AI Hub suits hobbyists and casual doodlers who want to see a rough sketch rendered in a painted or illustrated style, and parents who want to turn a child's drawing into a storybook scene with the family drawing mode. Illustrators and designers can use it to explore style directions for a composition before committing to a final piece. Because it uses small one-time packs instead of a subscription, it also fits people who only create occasionally and do not want a recurring charge.
Pricing
One time purchase, not a subscription
- Starter$4.99 once
- Recommended$9.99 once
- Creator$19.99 once
- Studio$49.99 once
From the vendor pricing page, 2026-10-15
