AI thumbnail maker

Describe the video and its hook, and Siteglade, an AI agent, creates thumbnail images in its Studio to match. It can also make the video itself: the script, the voice-over, word-by-word captions and the edit on a timeline.

Siteglade publishes this page about its own agent; the example prompts come from its feature pages.

What you get

Studio creates images, including cut-outs on a transparent background, on every plan including Free.

• Several thumbnail ideas built around one clear idea.
• A bold composition that reads on a small screen.
• A style that stays consistent across your channel.
• Images saved to your library.
• The long 16:9 video or the short that goes with it, if you ask.

• See the feature page

How to ask for it

Four steps, from the first sentence to the finished file:

• Describe the video, the audience and the one promise of the title.
• Attach earlier thumbnails if your channel has a look.
• Pick the ideas you like and ask for changes.
• Download the image or ask for the video too.

Prompts to start from

Copy one and change the details to your own:

• “Three thumbnail ideas for a video about brewing coffee at home, bright and simple”
• “A thumbnail for a tutorial on building a budget spreadsheet, in the style of the attached ones”

What to check before you use it

An agent saves the work, not the responsibility. Check these before the result goes out:

• Text in the image, which image models can get wrong; add the words in an editor if needed.
• How it reads at the size of a phone screen.
• That the thumbnail matches what the video really shows.

Price and other tools

Siteglade starts with a Free plan with 1,500 credits a month and 3 projects; paid plans cost Pro USD 14.99, Plus USD 34.99, Max USD 69.99 a month before tax. Other products that list this kind of result on their pricing pages include Manus, Genspark, ChatGPT, Google Gemini and Zemith; the comparisons show how they differ.

• Siteglade pricing
• All comparisons

Last updated: 2026-10-27