Documentation

Learn how to create stunning AI-generated thumbnails with effective prompts

Replace people in inspiration thumbnails with placeholder mannequins to create anonymous style references

Everything you need to create stunning AI-powered YouTube thumbnails with Thumbfa.st

Learn how to edit and refine your AI-generated thumbnails for perfect results

Step-by-step tutorials and best practices for creating stunning AI thumbnails

Connect Thumbfa.st to AI assistants like Claude, Cursor, or any MCP-compatible client

Learn how to create the perfect person for AI thumbnail generation

Integrate Thumbfa.st into any application using the REST API

Learn how to write effective prompts that give you the exact results you're looking for

Learn how to use inspirations to guide your AI thumbnail generation style

Learn how to add and reference images (logos, objects, products) in your AI thumbnail generations

Learn how to create professional podcast thumbnails with two people using AI

Learn how to work around Google AI safety filters when generating thumbnails with faces

Generate, modify, and manage AI-generated YouTube thumbnails. These tools handle the core thumbnail creation workflow.

Manage reference persons that can be included in thumbnail generations. Persons provide consistent face references.

Save and manage style inspirations from YouTube videos or images. Inspirations guide the AI's visual style.

Upload and manage reference images for use in thumbnail generation. Images can include logos, products, and other assets.

Check your thumbnail balance and view transaction history. Thumbnails are used for thumbnail generation and other AI operations.