Releases

What's New

Batch generation — generate up to 4 images in a single call (n: 1-4)
Multi-image editing — pass up to 10 source images for editing
Negative prompts — exclude specific elements from generated/edited images
System instructions — guide the model's behavior and style
Thumbnail previews — MCP responses include lightweight JPEG thumbnails (~20-50KB) instead of full-res images
HEIC/HEIF support — edit and describe images from Apple devices
14 aspect ratios — full set from Gemini docs including 1:4, 1:8, 4:1, 8:1, 21:9
4 output sizes — 512px, 1K, 2K, 4K
Structured metadata — generate/edit responses include JSON with model name, file paths, and MIME types
Configurable models — set GEMINI_MODEL, GEMINI_DESCRIBE_MODEL, or GEMINI_BASE_URL via env vars
Custom error hierarchy — clear error messages for blocked prompts, safety filters, missing images, and file not found

Removed path access restriction — images can now be read from any directory, not just the working directory and output directory

npx -y @daniel.barta/nano-banana-mcp