AI Image Generation
Create social media graphics using AI. Generate book-themed images, promotional graphics, and content visuals without design skills.
What is AI Image Generation?
AI image generation creates graphics from text descriptions. Describe what you want, and the AI produces an image.
Use cases for authors:
- Social media graphics — Eye-catching post images
- Book aesthetics — Mood boards and character vibes
- Promotional images — Sale announcements, new releases
- Quote graphics — Book quotes with backgrounds
- Character portraits — Visual representations
Note
Making images with AI is included with your plan, so you do not need your own key. If you saved your own image key in Settings, it is used first. If that key stops working, you still get your image from the included service, with a note telling you to update or remove the key.
Using your own image key (optional)
- Go to Settings → API Keys in StorytellerOS
- Add your image key
- Save
Generating Images
- Go to Social Studio → Images
- Click + Generate Image
- Write your prompt (description)
- Select size/format
- Click Generate
- Wait for the AI to create your image
- Save images you like to your library
Writing Good Prompts
Better prompts = better images. Include:
Subject
What should be in the image:
- "A cozy coffee shop with books"
- "A mysterious castle at night"
- "A woman reading by the ocean"
Style
How it should look:
- "Watercolor painting"
- "Photorealistic"
- "Minimalist illustration"
- "Vintage book cover style"
Mood/Atmosphere
The feeling it should evoke:
- "Warm and inviting"
- "Dark and mysterious"
- "Bright and cheerful"
- "Romantic sunset lighting"
Colors
Specific color preferences:
- "Pink and gold color scheme"
- "Dark blue and silver"
- "Autumn colors"
Tip
Combine elements: "A cozy coffee shop with books and warm lighting, watercolor illustration style, autumn color palette, warm and inviting mood"
Image Sizes
Choose the right size for your platform:
| Platform/Use | Recommended Size |
|---|---|
| Instagram Square | 1080x1080 |
| Instagram Portrait | 1080x1350 |
| Instagram Story | 1080x1920 |
| 1200x630 | |
| 1200x675 | |
| 1000x1500 |
Image Library
Saved images go to your library where you can:
- Browse all generated images
- Search by keyword or date
- Organize into folders
- Use in scheduled posts
- Download for external use
- Delete images you no longer need
Generating Variations
If you like an image but want something slightly different:
- Open the generated image
- Click Generate Variations
- The AI creates similar images with subtle differences
- Save your favorites
Batch Generation
Create multiple images at once:
- Enter your prompt
- Select Generate Multiple
- Choose how many (2-10)
- Generate
- Review all options
- Save the ones you like
Note
If you use your own image key, batch generation uses more of its credit. Check your usage with that service if you are making many images.
Adding Text to Images
After generating, you can add text overlays:
- Book quotes
- Sale announcements ("99¢ This Week!")
- Release dates
- Author name
The text editor lets you choose font, color, and position.
Text in AI Generation
AI-generated text within images is often garbled or incorrect. Generate the image without text, then add text using the text overlay tool.
Example Prompts for Authors
Romance
Romantic sunset scene with silhouettes of a couple, warm golden light, soft focus, dreamy atmosphere, photography style
Thriller
Dark alley in a city at night, rain-slicked streets, mysterious shadows, noir style, dramatic lighting, cinematic feel
Fantasy
Enchanted forest with glowing mushrooms and floating lights, magical atmosphere, ethereal, fantasy illustration style, purple and blue colors
Cozy Mystery
Quaint bookshop interior with a curious cat, warm lighting, vintage feel, cozy atmosphere, watercolor illustration style
Usage Rights
Images you make are yours to use for commercial purposes. If you use your own image key, check that service's current terms for specifics.
Understanding Costs
Images from the included service are part of your plan. If you use your own image key:
- That service charges you per image
- Higher quality or larger sizes may cost more
- Check your usage in that service's own account
- Set budget alerts there if it offers them
Best Practices
- Be specific — Detailed prompts get better results
- Iterate — Refine your prompt based on results
- Save good prompts — Reuse prompts that work well
- Match your brand — Use consistent styles across images
- Add text after — Do not ask AI to generate text in images
- Generate extras — Create images in batches for efficiency