AI YouTube thumbnail generator

Create a static thumbnail from your title, content summary, and visual assets. Ask Okou for distinct 16:9 layouts, compare them at phone size, and refine the image that represents your content best.

Describe the content your thumbnail should represent

Opens Okou with your prompt. Add source files after sign-in. Image generation uses account credits.Create my thumbnail
Start with:

From a clear brief to a finished image

Explore generated samples below, then open an example to inspect the full image and its prompt. Events, processes, and products are illustrative.

What is an AI YouTube thumbnail generator?

Title + content + visual assets → three thumbnail directions

An AI YouTube thumbnail generator turns a content brief into a cover image. It helps arrange a subject, a short headline, and a background so the topic is clear when the thumbnail is small.

Use the AI thumbnail maker to explore visual directions for a tutorial, review, or explainer. Original photos and screenshots can anchor the design, while generated artwork supplies a supporting concept or setting. The deliverable is a still image you can review and upload to your channel.

Weekly planning thumbnail: A short headline and a single desk scene designed for a business tutorial.

How to create a YouTube thumbnail with AI

Let the content determine the promise your cover makes.

  1. 01

    Add the title and context

    Provide the summary, audience, channel colors, and any original photos or screenshots to include.

  2. 02

    Compare visual angles

    Explore different compositions and concise headlines while keeping each option faithful to the content.

  3. 03

    Check the small preview

    Inspect contrast, headline size, and subject visibility at phone size. Export the chosen image at the requested dimensions.

What thumbnail styles can you create?

Use a distinct composition for the kind of story you are telling.

  • Tutorial covers

  • Product reviews

  • Business explainers

  • Consistent channel series

Pricing tutorial thumbnail: A focused visual concept for a consultant pricing lesson.

How to choose a thumbnail direction for your channel

Review the title and thumbnail patterns across your channel before designing the next cover. Use public observations to form ideas and your own analytics to evaluate them.

Review your YouTube channel
Inbox routine thumbnail: A clean visual metaphor for an email organization walkthrough.

Generated image examples

Open each image to inspect the full design and the original prompt. These English-language samples show fictional events, illustrative processes, and synthetic product concepts.

Generated with Okou

Weekly planning thumbnail

A short headline and a single desk scene designed for a business tutorial.

Generated with Okou

Pricing tutorial thumbnail

A focused visual concept for a consultant pricing lesson.

Generated with Okou

Inbox routine thumbnail

A clean visual metaphor for an email organization walkthrough.

Get better results with connectors

Bring the content brief and original assets, then explore a few clear visual directions.

Useful connectors

  • YouTube
  • Google Drive
  • Google Docs

Create the cover for your next upload

Save the source, evidence rules, output structure, and review points as a reusable workflow for the next run.

Start this workflowBrowse workflow examples

AI YouTube thumbnail generator FAQs

What size should I request for a YouTube thumbnail?

A 16:9 image at 1280 by 720 pixels is a practical starting size. Include the desired dimensions and file format in your prompt, then verify the export before uploading.

Do I need to upload the video?

A title, accurate summary, and relevant visual assets are enough to begin. Add an original screenshot when the cover needs to show a specific moment or interface.

Can I use my own face or product screenshot?

Supply the original photo or screenshot and ask Okou to preserve it during composition. Check the finished thumbnail against the source to catch changes to identity, text, or interface details.

Will an AI thumbnail improve my click-through rate?

A design alone cannot establish that. Compare thumbnail performance in your own channel analytics and keep the title and image consistent with the content. This tool produces image options for that review.

Is the thumbnail generator free?

You can browse examples and edit the prompt for free. Generating images requires a signed-in Okou account and uses account credits.

Okou also has the youTube channel audit, the youTube comment analyzer, the AI infographic generator and the AI product photography.

Create the cover for your next upload

Bring the content brief and original assets, then explore a few clear visual directions.

Start my thumbnail