Starcat Developer
Image Generation
Create and edit images with AI-powered generation directly in Starcat Developer
Describe an image and Starcat Developer generates it and saves it to your app assets.
Info:
Image generation needs the Generate Images permission on your role. Each image counts toward your AI usage.
Example: "Create a minimalist logo for my coffee shop called 'Morning Brew'".
Choosing a Model
The agent picks a model automatically. You can ask for one by name.
| Model | Best For |
|---|---|
| Nano Banana 2 (default) | Most images: photorealistic photos, products, people. Best quality for the cost. |
| Nano Banana 2 Lite | Quick drafts, thumbnails, and placeholders. Fastest and cheapest, 1K resolution only. |
| GPT Image 2 | Images with readable text (posters, menus, UI mockups, labeled diagrams) or precise layouts. |
| Nano Banana Pro | Complex multi-step edits where the default model falls short. |
Example: "Generate a poster for our summer sale with GPT Image 2. The dates and prices need to be readable."
Editing from References
Upload one or more images to the chat, then ask for changes: recolor, restyle, make variations, or combine elements.
- "Change this logo to use blue and gold."
- "Create a similar hero image with a warmer, autumn palette."
- "Combine the style of the first image with the colors of the second."
Aspect Ratios
Default is 1:1. Supported: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9.
| Ratio | Typical use |
|---|---|
| 1:1 | Icons, thumbnails, profile images |
| 16:9 | Hero banners, desktop headers |
| 9:16 | Mobile stories, vertical banners |
| 4:5 | Portrait social posts |
| 21:9 | Cinematic, ultra-wide banners |
Prompt Tips
- Style: "minimalist geometric logo with clean lines" beats "a nice logo".
- Composition: framing, perspective, background ("with space on the right for text").
- Colors and mood: "cobalt blue and warm gold", "calm and minimal".
- Exclusions: "no text or watermarks", "no people".
- Ask for several options ("3 logo concepts") and refine with feedback.