Can BananaGen create thumbnails?

Yes. Use a strong subject, high contrast, and simple background, then add text in a design tool.

What aspect ratio should social images use?

Use square for feeds, vertical for short-form covers and stories, and wide images for banners or blog headers.

Nano Banana 2 Social Media Image Generator

Make vertical posts, thumbnails and creator visuals with Nano Banana 2. Copy-ready 9:16 and 1:1 prompts, and how to keep text space clean.

2026/06/06

BananaGen helps creators and small teams generate social visuals quickly: thumbnails, post images, profile visuals, vertical graphics, campaign concepts, and short-form content covers. The best workflow is to create a clean visual first, then add final text in your editing tool.

Creator use case

Generate social media images with BananaGen

Use vertical, square, or wide prompts for social posts, thumbnails, banners, and creator visuals.

Create Social Images

A vibrant vertical social media visual of a creator workspace with a yellow laptop, warm daylight, clean desk, energetic modern style, strong focal point, room for headline text, no text, no watermark.

Best Formats to Try

Square images for feeds.
Vertical images for short-form covers and stories.
Wide images for banners and blog headers.
Portraits for creator profiles.
Product-focused images for social ads.

Practical Tips

Ask for "room for headline text" but add the final text separately.
Use one subject and one visual hook.
Keep the background simple on mobile-first images.
Test multiple aspect ratios before choosing the final image.
Reuse winning prompts for a consistent campaign style.

FAQ

Usually no. Generate the clean image first, then add final text in a design tool for better readability and localization.

Can I use BananaGen for thumbnails?

Yes. Use a strong subject, high contrast, and a simple background. Add thumbnail text after generation.

Generate social media images

Vertical post or Reel cover (9:16)

A vertical 9:16 image of [subject], bright clean background, cinematic side lighting, single strong focal point placed in the upper half, generous empty space along the bottom for a caption, polished but natural creator style, no text, no watermark.

Square feed post (1:1)

A 1:1 square composition of [subject], centred, soft even light, uncluttered background in [colour], crisp edges, modern social aesthetic, no text.

Thumbnail concept

A bold thumbnail image about [topic], high contrast, expressive focal subject on the right, large flat empty area on the left for a title, dramatic lighting, saturated colour, no readable text.

Framing Notes That Matter

Composition beats style here. Decide where the caption or title goes before you generate, then ask for empty space in exactly that region. A beautiful image with the subject dead-centre is unusable the moment you add text over it.

Each image is 6 credits, so a three-format set — vertical, square, thumbnail — is 18 credits.