How do I install the Nano Banana skill?

Run npx skillmds@latest add marktantongco/nano-banana in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Nano Banana safe to use?

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Which AI agents work with Nano Banana?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Nano Banana free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Nano Banana?

marktantongco (@marktantongco) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Nano Banana by marktantongco — Agent Skill

Name: Nano Banana
Author: marktantongco

Nano Banana

Generate images with Google Gemini native image models via inference.sh CLI. Models: Gemini 3 Pro Image, Gemini 2.5 Flash Image. Capabilities: text-to-image, image editing, multi-image input. Triggers: nano banana, gemini image, gemini 3 pro image, gemini 2.5 flash image, google image generation, native image generation, gemini native image

marktantongco Updated Sep 17, 2026

File contents

Install the belt CLI skill: npx skills add belt-sh/cli

Nano Banana - Gemini Native Image Generation

Generate images with Google Gemini native image models via inference.sh CLI.

Quick Start

Requires inference.sh CLI (belt). Install instructions

belt login

belt app run google/gemini-3-pro-image-preview --input '{"prompt": "a banana in space, photorealistic"}'

Models

Model	App ID	Speed	Quality
Gemini 3 Pro Image	`google/gemini-3-pro-image-preview`	Slower	Best
Gemini 2.5 Flash Image	`google/gemini-2-5-flash-image`	Fast	Excellent

Search Gemini Image Apps

belt app list --search "gemini image"

Examples

Basic Text-to-Image

belt app run google/gemini-3-pro-image-preview --input '{
  "prompt": "A futuristic cityscape at sunset with flying cars"
}'

Multiple Images

belt app run google/gemini-2-5-flash-image --input '{
  "prompt": "Minimalist logo design for a coffee shop",
  "num_images": 4
}'

Custom Aspect Ratio

belt app run google/gemini-3-pro-image-preview --input '{
  "prompt": "Panoramic mountain landscape with northern lights",
  "aspect_ratio": "16:9"
}'

Image Editing (with input image)

belt app run google/gemini-2-5-flash-image --input '{
  "prompt": "Add a rainbow in the sky",
  "images": ["https://example.com/landscape.jpg"]
}'

High Resolution (4K)

belt app run google/gemini-3-pro-image-preview --input '{
  "prompt": "Detailed illustration of a medieval castle",
  "resolution": "4K"
}'

With Google Search Grounding

belt app run google/gemini-3-pro-image-preview --input '{
  "prompt": "Current weather in Tokyo visualized as an artistic scene",
  "enable_google_search": true
}'

Input Options

Parameter	Type	Description
`prompt`	string	Required. What to generate or change
`images`	array	Input images for editing (up to 14)
`num_images`	integer	Number of images to generate
`aspect_ratio`	string	Output ratio: "1:1", "16:9", "9:16", "4:3", "3:4", "auto"
`resolution`	string	"1K", "2K", "4K" (Gemini 3 Pro only)
`output_format`	string	Output format for images
`enable_google_search`	boolean	Enable real-time info grounding

Prompt Tips

Styles: photorealistic, illustration, watercolor, oil painting, digital art, anime, 3D render

Composition: close-up, wide shot, aerial view, macro, portrait, landscape

Lighting: natural light, studio lighting, golden hour, dramatic shadows, neon

Details: add specific details about textures, colors, mood, atmosphere

Sample Workflow

# 1. Generate sample input to see all options
belt app sample google/gemini-3-pro-image-preview --save input.json

# 2. Edit the prompt
# 3. Run
belt app run google/gemini-3-pro-image-preview --input input.json

Related Skills

# Full platform skill (all 250+ apps)
npx skills add inference-sh/skills@infsh-cli

# All image generation models
npx skills add inference-sh/skills@ai-image-generation

# Video generation (for image-to-video)
npx skills add inference-sh/skills@ai-video-generation

Browse all image apps: belt app list --category image

Documentation

Running Apps - How to run apps via CLI
Streaming Results - Real-time progress updates
File Handling - Working with images

---name: nano-bananadescription: Generate images with Google Gemini native image models via inference.sh CLI. Models: Gemini 3 Pro Image, Gemini 2.5 Flash Image. Capabilities: text-to-image, image editing, multi-image input. Triggers: nano banana, gemini image, gemini 3 pro image, gemini 2.5 flash image, google image generation, native image generation, gemini native image---> **Install the belt CLI skill:** `npx skills add belt-sh/cli`# Nano Banana - Gemini Native Image GenerationGenerate images with Google Gemini native image models via [inference.sh](https://inference.sh) CLI.![Nano Banana](https://cloud.inference.sh/u/33sqbmzt3mrg2xxphnhw5g5ear/01k8d6xa9cwawrvzk9cgtsexfc.png)## Quick Start> Requires inference.sh CLI (`belt`). [Install instructions](https://raw.githubusercontent.com/inference-sh/skills/refs/heads/main/cli-install.md)```bashbelt loginbelt app run google/gemini-3-pro-image-preview --input '{"prompt": "a banana in space, photorealistic"}'```## Models| Model | App ID | Speed | Quality ||-------|--------|-------|---------|| Gemini 3 Pro Image | `google/gemini-3-pro-image-preview` | Slower | Best || Gemini 2.5 Flash Image | `google/gemini-2-5-flash-image` | Fast | Excellent |## Search Gemini Image Apps```bashbelt app list --search "gemini image"```## Examples### Basic Text-to-Image```bashbelt app run google/gemini-3-pro-image-preview --input '{ "prompt": "A futuristic cityscape at sunset with flying cars"}'```### Multiple Images```bashbelt app run google/gemini-2-5-flash-image --input '{ "prompt": "Minimalist logo design for a coffee shop", "num_images": 4}'```### Custom Aspect Ratio```bashbelt app run google/gemini-3-pro-image-preview --input '{ "prompt": "Panoramic mountain landscape with northern lights", "aspect_ratio": "16:9"}'```### Image Editing (with input image)```bashbelt app run google/gemini-2-5-flash-image --input '{ "prompt": "Add a rainbow in the sky", "images": ["https://example.com/landscape.jpg"]}'```### High Resolution (4K)```bashbelt app run google/gemini-3-pro-image-preview --input '{ "prompt": "Detailed illustration of a medieval castle", "resolution": "4K"}'```### With Google Search Grounding```bashbelt app run google/gemini-3-pro-image-preview --input '{ "prompt": "Current weather in Tokyo visualized as an artistic scene", "enable_google_search": true}'```## Input Options| Parameter | Type | Description ||-----------|------|-------------|| `prompt` | string | **Required.** What to generate or change || `images` | array | Input images for editing (up to 14) || `num_images` | integer | Number of images to generate || `aspect_ratio` | string | Output ratio: "1:1", "16:9", "9:16", "4:3", "3:4", "auto" || `resolution` | string | "1K", "2K", "4K" (Gemini 3 Pro only) || `output_format` | string | Output format for images || `enable_google_search` | boolean | Enable real-time info grounding |## Prompt Tips**Styles**: photorealistic, illustration, watercolor, oil painting, digital art, anime, 3D render**Composition**: close-up, wide shot, aerial view, macro, portrait, landscape**Lighting**: natural light, studio lighting, golden hour, dramatic shadows, neon**Details**: add specific details about textures, colors, mood, atmosphere## Sample Workflow```bash# 1. Generate sample input to see all optionsbelt app sample google/gemini-3-pro-image-preview --save input.json# 2. Edit the prompt# 3. Runbelt app run google/gemini-3-pro-image-preview --input input.json```## Related Skills```bash# Full platform skill (all 250+ apps)npx skills add inference-sh/skills@infsh-cli# All image generation modelsnpx skills add inference-sh/skills@ai-image-generation# Video generation (for image-to-video)npx skills add inference-sh/skills@ai-video-generation```Browse all image apps: `belt app list --category image`## Documentation- [Running Apps](https://inference.sh/docs/apps/running) - How to run apps via CLI- [Streaming Results](https://inference.sh/docs/api/sdk/streaming) - Real-time progress updates- [File Handling](https://inference.sh/docs/api/sdk/files) - Working with images

Frequently asked questions