Click-through work

A thumbnail that matches the video it's selling.

A thumbnail's job is to promise accurately. Generating it in the same style as the video means the promise and the payoff look like the same thing — which matters more for retention than it does for the click.

Built for

YouTube creators · Shorts and Reels creators · Course creators · Marketers

High-contrast comic-style key frame

The practical difference

Thumbnails in your video's own visual language, at the aspect ratio you actually publish in.

What the workflow helps you do

Make every scene serve the larger idea.

01

Match the video, don't out-promise it

A dramatic thumbnail over a flat video buys a click and loses the viewer in four seconds, which most platforms punish harder than a lower click-through rate. Generating both in one style keeps the gap small.

02

Composed for the ratio, not cropped into it

Choosing 16:9 or 9:16 before generating means the subject is composed for that frame. Cropping a square afterwards throws away the compositional decisions that made it work.

03

Cheap enough to test

At one credit past the free quota, generating three candidates and picking one is a reasonable habit rather than an indulgence.

A better starting point

A production process you can repeat.

Use this as a planning sequence, not a rigid formula. The goal is to make the creative and editorial decisions before rendering so that the generated scenes have a clear job to perform.

Read the thumbnail guide
  1. 01

    Decide the one readable element

    A face, an object, or a contrast — thumbnails are read at small size, so one element has to survive that.

  2. 02

    Generate at publishing ratio

    16:9 for standard video, 9:16 for Shorts and Reels.

  3. 03

    Check it small

    View the candidate at thumbnail size before deciding. Most fail there, not at full size.

Editorial guardrails

The part AI should not decide for you.

Text usually belongs on top, added later

Generated lettering is unreliable. Leave deliberate empty space in the frame and add text in an editor where you control the typeface.

High contrast survives compression

Platform compression flattens subtle tonal work. Strong value contrast is what remains legible in a crowded feed.

Use this as a starting brief

Example prompt

A startled fox looking at a burnt loaf of bread, bold contrast, empty space on the right for a title

Adapt the audience, platform, character, story change, and visual style. The more the brief reflects your own format, the less the finished video will feel interchangeable.

Try it now

Make one image without signing up.

No account, no card. Sign up afterwards and the image you made is saved to your account, along with the rest of your three free images this month.

Frequently asked questions

Useful questions before you start.

What size are the thumbnails?

Generate at 16:9 for standard video or 9:16 for vertical; both are produced at usable resolution for platform upload.

Can I add text?

Add text afterwards in an editor — generated lettering is unreliable, so leave space for it in the frame.

Does a thumbnail cost a credit?

It draws from the same three free images a month, then one credit each.

Start with an idea worth finishing.

Give the prompt a point of view, a viewer, and a clear final beat. The rest of the workflow becomes far easier to shape.