lidge-jun/fal-image-edit

fal.ai Media

Image editing, image generation, video generation, and audio generation via fal.ai MCP.

Models

| Model | Best For | |-------|----------| | fal-ai/nano-banana-pro | General editing and T2I (recommended default) | | fal-ai/flux-kontext | Background change, context-aware editing | | fal-ai/flux/dev/image-to-image | Style transfer (strength 0.3–0.5 subtle, 0.7–0.9 dramatic) | | fal-ai/bria/fibo-edit | Object removal (works without masks) | | fal-ai/flux/dev/inpainting | Masked inpainting (requires binary mask: white = edit area) |

CLI Usage

bash /mnt/skills/user/fal-image-edit/scripts/edit-image.sh [options]

| Argument | Description | |----------|-------------| | --image-url | URL of image to edit (required) | | --prompt | Description of desired edit (required) | | --operation | style, remove, background, inpaint (default: style) | | --mask-url | Mask image URL (required for inpainting) | | --strength | Edit strength 0.0–1.0 (default: 0.75) |

Examples:

# Style transfer
bash /mnt/skills/user/fal-image-edit/scripts/edit-image.sh \
  --image-url "https://example.com/photo.jpg" \
  --prompt "Convert to anime style" \
  --operation style

# Remove object
bash /mnt/skills/user/fal-image-edit/scripts/edit-image.sh \
  --image-url "https://example.com/photo.jpg" \
  --prompt "Remove the person on the left" \
  --operation remove

# Change background
bash /mnt/skills/user/fal-image-edit/scripts/edit-image.sh \
  --image-url "https://example.com/portrait.jpg" \
  --prompt "Place in a tropical beach setting" \
  --operation background

# Inpainting with mask
bash /mnt/skills/user/fal-image-edit/scripts/edit-image.sh \
  --image-url "https://example.com/photo.jpg" \
  --mask-url "https://example.com/mask.png" \
  --prompt "Fill with flowers" \
  --operation inpaint

MCP Tool Alternative

General Edit (Recommended)

mcp__fal-ai__generate({
  modelId: "fal-ai/nano-banana-pro",
  input: {
    image_url: "https://example.com/photo.jpg",
    prompt: "Make the sky more dramatic with sunset colors"
  }
})

Style Transfer

mcp__fal-ai__generate({
  modelId: "fal-ai/flux/dev/image-to-image",
  input: {
    image_url: "https://example.com/photo.jpg",
    prompt: "Convert to anime style",
    strength: 0.75
  }
})

Object Removal

mcp__fal-ai__generate({
  modelId: "bria/fibo-edit",
  input: {
    image_url: "https://example.com/photo.jpg",
    prompt: "Remove the person on the left"
  }
})

Background Change

mcp__fal-ai__generate({
  modelId: "fal-ai/flux-kontext",
  input: {
    image_url: "https://example.com/portrait.jpg",
    prompt: "Place the subject in a tropical beach setting"
  }
})

Inpainting

mcp__fal-ai__generate({
  modelId: "fal-ai/flux/dev/inpainting",
  input: {
    image_url: "https://example.com/photo.jpg",
    mask_url: "https://example.com/mask.png",
    prompt: "Fill with flowers"
  }
})

Mask Tips

• White pixels = areas to edit, black pixels = areas to preserve
• Use PNG format
• Feathered edges create smoother transitions

Tuning

• Edit too subtle → increase --strength (e.g., 0.85)
• Edit too dramatic → decrease --strength (e.g., 0.3)
• Object not fully removed → be more specific in prompt, or use inpainting with explicit mask
• Background artifacts → use FLUX Kontext for better edge handling

---

Image Generation (Text-to-Image)

Nano Banana 2 (Fast)

Best for: quick iterations, drafts, prompt exploration.

mcp__fal-ai__generate({
  modelId: "fal-ai/nano-banana-2",
  input: {
    prompt: "a futuristic cityscape at sunset, cyberpunk style",
    image_size: "landscape_16_9",
    num_images: 1,
    seed: 42
  }
})

Nano Banana Pro (High Fidelity)

Best for: production images, realism, typography, detailed prompts.

mcp__fal-ai__generate({
  modelId: "fal-ai/nano-banana-pro",
  input: {
    prompt: "professional product photo of wireless headphones on marble surface, studio lighting",
    image_size: "square",
    num_images: 1,
    guidance_scale: 7.5
  }
})

Generation Parameters

| Param | Type | Options | Notes | |-------|------|---------|-------| | prompt | string | required | Describe what you want | | image_size | string | square, portrait_4_3, landscape_16_9, portrait_16_9, landscape_4_3 | Aspect ratio | | num_images | number | 1-4 | How many to generate | | seed | number | any integer | Reproducibility | | guidance_scale | number | 1-20 | Higher = more literal prompt following |

---

Video Generation

Seedance 1.0 Pro (ByteDance)

Best for: text-to-video, image-to-video with high motion quality.

mcp__fal-ai__generate({
  modelId: "fal-ai/seedance-1-0-pro",
  input: {
    prompt: "a drone flyover of a mountain lake at golden hour, cinematic",
    duration: "5s",
    aspect_ratio: "16:9",
    seed: 42
  }
})

Kling Video v3 Pro

Best for: text/image-to-video with native audio generation.

mcp__fal-ai__generate({
  modelId: "fal-ai/kling-video/v3/pro",
  input: {
    prompt: "ocean waves crashing on a rocky coast, dramatic clouds",
    duration: "5s",
    aspect_ratio: "16:9"
  }
})

Veo 3 (Google DeepMind)

Best for: video with generated sound, high visual quality.

mcp__fal-ai__generate({
  modelId: "fal-ai/veo-3",
  input: {
    prompt: "a bustling Tokyo street market at night, neon signs, crowd noise",
    aspect_ratio: "16:9"
  }
})

Image-to-Video

Start from an existing image for more controlled results:

mcp__fal-ai__generate({
  modelId: "fal-ai/seedance-1-0-pro",
  input: {
    prompt: "camera slowly zooms out, gentle wind moves the trees",
    image_url: "<uploaded_image_url>",
    duration: "5s"
  }
})

Video Parameters

| Param | Type | Options | Notes | |-------|------|---------|-------| | prompt | string | required | Describe the video (focus on motion and scene) | | duration | string | "5s", "10s" | Video length | | aspect_ratio | string | "16:9", "9:16", "1:1" | Frame ratio | | seed | number | any integer | Reproducibility | | image_url | string | URL | Source image for image-to-video |

---

Audio Generation

CSM-1B (Conversational Speech)

Text-to-speech with natural, conversational quality.

mcp__fal-ai__generate({
  modelId: "fal-ai/csm-1b",
  input: { text: "Hello, welcome to the demo.", speaker_id: 0 }
})

ThinkSound (Video-to-Audio)

Generate matching audio/SFX from video content.

mcp__fal-ai__generate({
  modelId: "fal-ai/thinksound",
  input: {
    video_url: "<video_url>",
    prompt: "ambient forest sounds with birds chirping"
  }
})

---

Cost Estimation

Check estimated cost before expensive generations:

mcp__fal-ai__estimate_cost({
  estimate_type: "unit_price",
  endpoints: { "fal-ai/nano-banana-pro": { unit_quantity: 1 } }
})

Model Discovery

mcp__fal-ai__search({ query: "text to video" })
mcp__fal-ai__find({ endpoint_ids: ["fal-ai/seedance-1-0-pro"] })
mcp__fal-ai__models()

Tips

• Use seed for reproducible results when iterating on prompts
• Start with lower-cost models (Nano Banana 2) for prompt exploration, then switch to Pro for finals
• For video, keep prompts concise — focus on motion and scene description
• Image-to-video produces more controlled results than pure text-to-video
• Check estimate_cost before running expensive video generations