inference-sh/skills/nano-banana-2

Name: nano-banana-2
Author: inference-sh

Claude Code and agent skill by inference-sh/skills

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Generate images with Google Gemini 3.1 Flash Image Preview (Nano Banana 2) via inference.sh CLI. Capabilities: text-to-image, image editing, multi-image input (up to 14 images), Google Search grounding. Triggers: nano banana 2, nanobanana 2, gemini 3.1 flash image, gemini 3 1 flash image preview, google image generation

Install

npx vskill@latest install inference-sh/skills/nano-banana-2

SKILL.md

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

Nano Banana 2 - Gemini 3.1 Flash Image Preview

Generate images with Google Gemini 3.1 Flash Image Preview via inference.sh CLI.

Quick Start

Requires inference.sh CLI (belt). Install instructions

bash

belt login
 
belt app run google/gemini-3-1-flash-image --input '{"prompt": "a banana in space, photorealistic"}'

Examples

Basic Text-to-Image

bash

belt app run google/gemini-3-1-flash-image --input '{
  "prompt": "A futuristic cityscape at sunset with flying cars"
}'

Multiple Images

bash

belt app run google/gemini-3-1-flash-image --input '{
  "prompt": "Minimalist logo design for a coffee shop",
  "num_images": 4
}'

Custom Aspect Ratio

bash

belt app run google/gemini-3-1-flash-image --input '{
  "prompt": "Panoramic mountain landscape with northern lights",
  "aspect_ratio": "16:9"
}'

Image Editing (with input images)

bash

belt app run google/gemini-3-1-flash-image --input '{
  "prompt": "Add a rainbow in the sky",
  "images": ["https://example.com/landscape.jpg"]
}'

High Resolution (4K)

bash

belt app run google/gemini-3-1-flash-image --input '{
  "prompt": "Detailed illustration of a medieval castle",
  "resolution": "4K"
}'

With Google Search Grounding

bash

belt app run google/gemini-3-1-flash-image --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). Supported: JPEG, PNG, WebP
`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" (default: 1K)
`output_format`	string	Output format for images
`enable_google_search`	boolean	Enable real-time info grounding (weather, news, etc.)

Output

Field	Type	Description
`images`	array	The generated or edited images
`description`	string	Text description or response from the model
`output_meta`	object	Metadata about inputs/outputs for pricing

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 options
belt app sample google/gemini-3-1-flash-image --save input.json
 
# 2. Edit the prompt
# 3. Run
belt app run google/gemini-3-1-flash-image --input input.json

Python SDK

python

from inferencesh import inference
client = inference()
# Basic generation
result = client.run({
    "app": "google/gemini-3-1-flash-image@0c7ma1ex",
    "input": {
        "prompt": "A banana in space, photorealistic"
    }
})
print(result["output"])
# Stream live updates
for update in client.run({
    "app": "google/gemini-3-1-flash-image@0c7ma1ex",
    "input": {
        "prompt": "A futuristic cityscape at sunset"
    }
}, stream=True):
    if update.get("progress"):
        print(f"progress: {update['progress']}%")
    if update.get("output"):
        print(f"output: {update['output']}")

Related Skills

bash

# Original Nano Banana (Gemini 3 Pro Image, Gemini 2.5 Flash Image)
npx skills add inference-sh/skills@nano-banana
 
# Full platform skill (all apps)
npx skills add inference-sh/skills@infsh-cli
 
# All image generation models
npx skills add inference-sh/skills@ai-image-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

Security

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Quality evaluation

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Source

SKILL.md in the repositoryCheckingtools/image/nano-banana-2/SKILL.md

Popularity

Repository stars: 699
Repository forks: 97
7-day trend score: 33

Stars and forks are for the whole GitHub repository, not this skill alone. Refreshed 29 Mar 2026, 7 months ago.

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