AI Image Generation Skill

AI Image Generation Skill

Generate high-quality AI images using OpenAI's gpt-image-1 model with customizable styles and themes.

When to Use This Skill

Use this skill when the user wants to:

• Generate images from text descriptions
• Create artwork with specific artistic styles
• Generate images with particular aspect ratios (vertical, horizontal, square)
• Apply themed visual styles (Studio Ghibli, futuristic, Pixar, oil painting, Chinese painting)

Instructions

1. Check for API Key: Verify that the OPENAI_API_KEY environment variable is set
2. Gather Requirements: Ask the user for:
   • Image prompt (required)
   • Style/​aspect ratio: vertical (1024x1536), horizontal (1536x1024), or square (1024x1024)
   • Theme: ghibli, futuristic, pixar, oil-paint, or chinese-paint (optional)
   • Output location (optional, defaults to ./​generated_image.png)
3. Run the CLI: Execute the main.py script with the appropriate parameters
4. Report Results: Show the user where the image was saved and any relevant details

Available Options

Aspect Ratios (--style)

• vertical: 1024x1536 pixels (portrait orientation)
• horizontal: 1536x1024 pixels (landscape orientation)
• square: 1024x1024 pixels (default)

Artistic Themes (--theme)

• ghibli: Studio Ghibli animation style with whimsical, dreamlike aesthetics
• futuristic: Sci-fi style with sleek designs and neon lights
• pixar: Vibrant 3D animation style with expressive characters
• oil-paint: Classical oil painting with rich textures and brushstrokes
• chinese-paint: Traditional Chinese ink painting with delicate brushwork

Usage Examples

Basic Usage

uv run main.py --prompt "a cat sitting on a tree"

With Style and Theme

uv run main.py --prompt "a sunset over mountains" --style horizontal --theme oil-paint --output ./​sunset.png

Futuristic Portrait

uv run main.py --prompt "a robot in a city" --style vertical --theme futuristic --output ./​robot.png

Studio Ghibli Landscape

uv run main.py --prompt "a magical forest with spirits" --style horizontal --theme ghibli --output ./​forest.png

Setup Requirements

This skill requires an OpenAI API key with access to the gpt-image-1 model:

export OPENAI_API_KEY='your-api-key-here'

Note: Using gpt-image-1 requires organization verification on the OpenAI platform.

Technical Details

• Model: OpenAI gpt-image-1 (released April 2025)
• Response Format: Base64 encoded images (b64_json)
• Supported Sizes: 1024x1024, 1024x1536, 1536x1024
• Maximum Resolution: Up to 4096x4096 pixels
• Dependencies: openai>=2.7.1

Pricing Information

Usage is priced per token:

• Text tokens: $5 per million
• Image input tokens: $10 per million
• Image output tokens: $40 per million

Approximate costs per generated image:

• Low quality square: ~$0.02
• Medium quality square: ~$0.07
• High quality square: ~$0.19

Troubleshooting

API Key Not Set

If you see "Error: OPENAI_API_KEY environment variable not set", ensure your API key is exported in your shell session.

Organization Not Verified

gpt-image-1 requires organization verification on platform.openai.com. Visit your OpenAI account settings to complete verification.

Invalid Size Error

Ensure you're using one of the supported sizes: 1024x1024, 1024x1536, or 1536x1024.