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Generating Images with Nano Banana

Generate ad-ready images with AI using Nano Banana 2 — from text descriptions or reference images.

Written by Alec Corum
Updated today

Obie can generate ad-ready images directly in your chat using Nano Banana 2, a built-in AI image generation tool. Create scroll-stopping ad creatives, product imagery, and social content — all from a text description.

How It Works

  1. Describe the image you want in your message to Obie

  2. Optionally upload up to 4 reference images for Obie to use as inspiration

  3. Obie generates the image and displays it in your chat

  4. Iterate by asking for adjustments (different style, colors, composition, etc.)

Supported Aspect Ratios

  • 1:1 — Square (Instagram feed, Facebook feed)

  • 4:5 — Portrait (Instagram feed recommended)

  • 9:16 — Vertical (Stories, Reels, TikTok)

  • 16:9 — Landscape (YouTube, Facebook cover)

  • 2:3 / 3:2 — Standard portrait/landscape

  • 3:4 / 4:3 — Classic portrait/landscape

  • 5:4 — Slightly wide

  • 21:9 — Ultra-wide banner

If you don't specify, Obie defaults to 1:1 (square). Just mention your preferred ratio in your prompt.

Using Reference Images

Upload images in the chat composer to give Obie visual context. This is great for:

  • Creating variations of an existing ad that's performing well

  • Generating ad creatives featuring your actual product

  • Matching a specific visual style or brand aesthetic

Upload up to 4 reference images per request. Obie will analyze the style, composition, and color palette to inform its generations.

Example Prompts

  • "Generate a 4:5 ad image for our summer sale. Use bright, warm colors with a lifestyle feel. The product is a skincare serum."

  • "I've uploaded a reference ad — analyze what makes it effective and generate 3 new variations in the same style."

  • "Create a 9:16 Story image promoting our new product launch. Keep it minimal and modern."

  • "I've uploaded a product photo. Turn it into a scroll-stopping ad creative with copy tailored to our audience."

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