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gemini-image

@bluewaves-creations/bluewaves-skills
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Generate images from text prompts using fal.ai Gemini 3 Pro. Use when the user asks to create, generate, or make an image from a text description. Supports multiple aspect ratios and resolutions up to 4K.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name gemini-image
description Generate images from text prompts using fal.ai Gemini 3 Pro. Use when the user asks to create, generate, or make an image from a text description. Supports multiple aspect ratios and resolutions up to 4K.

Gemini Image Generation

Generate high-quality images from text prompts using Google's Gemini 3 Pro model via fal.ai.

Prerequisites

  • FAL_KEY environment variable must be set (typically in ~/.zshrc)

API Endpoint

POST https://fal.run/fal-ai/gemini-3-pro-image-preview

Parameters

Required

  • prompt (string): The text description of the image to generate

Optional

Parameter Type Default Options
num_images integer 1 1-4
aspect_ratio string "1:1" "21:9", "16:9", "3:2", "4:3", "5:4", "1:1", "4:5", "3:4", "2:3", "9:16"
output_format string "png" "jpeg", "png", "webp"
resolution string "1K" "1K", "2K", "4K"
sync_mode boolean false Returns data URI when true
enable_web_search boolean false Uses current web data for generation
limit_generations boolean false Restricts to 1 image per prompt round

Usage

cURL

curl --request POST \
  --url https://fal.run/fal-ai/gemini-3-pro-image-preview \
  --header "Authorization: Key $FAL_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "prompt": "A serene mountain landscape at sunset with golden light",
    "num_images": 1,
    "aspect_ratio": "16:9",
    "resolution": "2K",
    "output_format": "png"
  }'

Python

import fal_client

result = fal_client.subscribe(
    "fal-ai/gemini-3-pro-image-preview",
    arguments={
        "prompt": "A serene mountain landscape at sunset with golden light",
        "num_images": 1,
        "aspect_ratio": "16:9",
        "resolution": "2K"
    }
)

# Access the generated image URL
image_url = result["images"][0]["url"]
print(f"Generated image: {image_url}")

JavaScript

import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/gemini-3-pro-image-preview", {
  input: {
    prompt: "A serene mountain landscape at sunset with golden light",
    num_images: 1,
    aspect_ratio: "16:9",
    resolution: "2K"
  }
});

console.log("Generated image:", result.images[0].url);

Response Format

{
  "images": [
    {
      "file_name": "generated_image.png",
      "content_type": "image/png",
      "url": "https://storage.googleapis.com/..."
    }
  ],
  "description": "A description of the generated image"
}

Examples

  1. Simple image generation:

    • Prompt: "Generate an image of a futuristic city at night"

  2. Specific aspect ratio:

    • Prompt: "Create a portrait-oriented image of a forest path" with aspect_ratio: "9:16"

  3. High resolution:

    • Prompt: "Generate a detailed 4K image of a coral reef" with resolution: "4K"