# Featured images

Every article can have a **featured image** — the cover shown at the top of the
post and used for social sharing. Upload your own, or have Terradium generate one
in your brand style.

## Upload an image

On a finished article, open the featured-image area and choose **Upload**:

- Accepted formats: **JPEG, PNG, or WebP**.
- Maximum size: **500 KB** — kept small on purpose for fast page loads and clean
  social previews.

Uploads are **free** and don't touch your generation quota. You can **Remove** or
replace the image at any time.

## Generate with AI

If the project has **AI featured images** enabled and an image style configured,
you'll also see **Generate with AI**. Terradium creates a cover image that matches
your configured style, and you can **Regenerate** if you want a different take.

AI image generation **consumes one generation** from your monthly quota (uploads
don't). If you don't see the option, enable it in **project settings → AI featured
images**.

## Image style

The **image style** tells the generator how images should look. You set it once
(in the new-project wizard or project settings) from a few simple choices:

- **Medium** — photographic, stock photo, 3D, flat illustration, or line art.
- **Mood** — vibrant, muted, monochrome, or pastel.
- **Subject treatment** — literal, abstract, or metaphorical.
- **Brand cues** — an optional note for colors or motifs to lean on.

Turn on **auto-generate** to have an image created automatically as soon as each
article finishes.

## Quota & limits

- Uploaded images: **free**, max **500 KB**, JPEG/PNG/WebP.
- AI-generated images: **one generation credit** each, in your brand style.

See [Billing & quota](/docs/billing-quota) for how credits work.