Generate Image

Generate images using Gemini's imagen-3.0 models.

When to Use

Use this skill when the user asks to:

• Generate an image from a text prompt
• Create artwork, illustrations, or graphics
• Generate variations of an existing image (img2img)

Usage

bun run scripts/generate.ts "prompt" [options]

Options

• --size <1K|2K|4K> - Image size (default: 2K)
• --aspect <ratio> - Aspect ratio: 1:1, 16:9, 9:16, 4:3, 3:4
• --negative <prompt> - Negative prompt (what to avoid)
• --count <n> - Number of images (1-4, default: 1)
• --guidance <n> - Guidance scale
• --seed <n> - Random seed for reproducibility
• --input <path> - Input image for img2img
• --output <path> - Output path

Examples

# Simple generation
bun run scripts/generate.ts "cyberpunk cityscape at night"

# High-res with specific aspect ratio
bun run scripts/generate.ts "mountain landscape" --size 4K --aspect 16:9

# With negative prompt
bun run scripts/generate.ts "portrait of a cat" --negative "low quality, blurry"

# Generate multiple variations
bun run scripts/generate.ts "abstract art" --count 4

# Image-to-image
bun run scripts/generate.ts "make it look like a watercolor painting" --input photo.jpg

Model

Uses gemini-3-pro-image-preview for image generation.