fal-generate

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Translated
4 scripts

Generate images and videos using fal.ai AI models with queue support. Use when the user requests "Generate image", "Create video", "Make a picture of...", "Text to image", "Image to video", "Search models", or similar generation tasks.

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NPX Install

npx skill4agent add ilkerzg/agent-skills fal-generate

Tags

Translated version includes tags in frontmatter

fal.ai Generate

Generate images and videos using state-of-the-art AI models on fal.ai.

Scripts

ScriptPurpose
generate.sh
Generate images/videos (queue-based)
upload.sh
Upload local files to fal CDN
search-models.sh
Search and discover models
get-schema.sh
Get OpenAPI schema for any model

Queue System (Default)

All requests use the queue system by default for reliability:
User Request → Queue Submit → Poll Status → Get Result
              request_id
Benefits:
  • Long-running tasks (video) won't timeout
  • Can check status anytime
  • Can cancel queued requests
  • Results retrievable even if connection drops

Generate Content

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

Basic Usage (Queue Mode)

bash
# Image - submits to queue, waits for completion
bash generate.sh --prompt "A serene mountain landscape" --model "fal-ai/nano-banana-pro"

# Video - same, but takes longer
bash generate.sh --prompt "Ocean waves crashing" --model "fal-ai/veo3.1"

# Image-to-Video
bash generate.sh \
  --prompt "Camera slowly zooms in" \
  --model "fal-ai/kling-video/v2.6/pro/image-to-video" \
  --image-url "https://example.com/image.jpg"

Async Mode (Return Immediately)

For long video jobs, use
--async
to get request_id immediately:
bash
# Submit and return immediately
bash generate.sh --prompt "Epic battle scene" --model "fal-ai/veo3.1" --async

# Output:
# Request ID: abc123-def456
# Request submitted. Use these commands to check:
#   Status: ./generate.sh --status "abc123-def456" --model "fal-ai/veo3.1"
#   Result: ./generate.sh --result "abc123-def456" --model "fal-ai/veo3.1"

Queue Operations

bash
# Check status
bash generate.sh --status "request_id" --model "fal-ai/veo3.1"
# → IN_QUEUE (position: 3) | IN_PROGRESS | COMPLETED

# Get result (when COMPLETED)
bash generate.sh --result "request_id" --model "fal-ai/veo3.1"

# Cancel (only if still queued)
bash generate.sh --cancel "request_id" --model "fal-ai/veo3.1"

Show Logs During Generation

bash
bash generate.sh --prompt "A sunset" --model "fal-ai/flux/dev" --logs
# Status: IN_QUEUE (position: 2)
# Status: IN_PROGRESS
#   > Loading model...
#   > Generating image...
# Status: COMPLETED

File Upload

Option 1: Auto-upload with --file

bash
# Local file is automatically uploaded to fal CDN
bash generate.sh \
  --file "/path/to/photo.jpg" \
  --model "fal-ai/kling-video/v2.6/pro/image-to-video" \
  --prompt "Camera zooms in slowly"

Option 2: Manual upload with upload.sh

bash
# Upload first
URL=$(bash upload.sh --file "/path/to/photo.jpg")
# → https://v3.fal.media/files/xxx/photo.jpg

# Then generate
bash generate.sh --image-url "$URL" --model "..." --prompt "..."

Option 3: Use existing URL

bash
# Any public URL works
bash generate.sh --image-url "https://example.com/image.jpg" ...
Supported file types:
  • Images: jpg, jpeg, png, gif, webp
  • Videos: mp4, mov, webm
  • Audio: mp3, wav, flac
Upload flow (two-step):
1. POST rest.alpha.fal.ai/storage/auth/token?storage_type=fal-cdn-v3
   → {"token": "...", "base_url": "https://v3b.fal.media"}

2. POST {base_url}/files/upload
   Authorization: Bearer {token}
   → {"access_url": "https://v3b.fal.media/files/..."}
Max file size: 100MB (simple upload)

Arguments Reference

ArgumentDescriptionDefault
--prompt
,
-p
Text description(required)
--model
,
-m
Model ID
fal-ai/flux/dev
--image-url
Input image URL for I2V-
--file
,
--image
Local file (auto-uploads)-
--size
square
,
portrait
,
landscape
landscape_4_3
--num-images
Number of images1
Mode Options:
ArgumentDescription
(default)Queue mode - submit and poll until complete
--async
Submit to queue, return request_id immediately
--sync
Synchronous (not recommended for video)
--logs
Show generation logs while polling
Queue Operations:
ArgumentDescription
--status ID
Check status of a queued request
--result ID
Get result of a completed request
--cancel ID
Cancel a queued request
Advanced:
ArgumentDescriptionDefault
--poll-interval
Seconds between status checks2
--timeout
Max seconds to wait600
--lifecycle N
Object expiration in seconds-
--schema [MODEL]
Get OpenAPI schema-

Recommended Models

Text-to-Image

ModelNotes
fal-ai/nano-banana-pro
Best overall - T2I and editing
fal-ai/flux-2-turbo
Open source, high quality
fal-ai/flux-2-klein-9b
Open source, fast
fal-ai/flux/dev
Good balance (default)
fal-ai/flux/schnell
~1 second
fal-ai/ideogram/v3
Best for text rendering

Text-to-Video

ModelNotes
fal-ai/veo3.1
High quality
fal-ai/bytedance/seedance/v1/pro
Fast, good quality
fal-ai/sora-2/pro
OpenAI Sora
fal-ai/kling-video/v2.5-turbo/pro
Fast, reliable
fal-ai/minimax/hailuo-02/pro
Good for characters

Image-to-Video

ModelNotes
fal-ai/kling-video/v2.6/pro/image-to-video
Best overall
fal-ai/veo3/fast
Fast, high quality
fal-ai/bytedance/seedance/v1.5/pro/image-to-video
Smooth motion
fal-ai/minimax/hailuo-02/standard/image-to-video
Good balance

Search Models

bash
# Search by keyword
bash search-models.sh --query "flux"

# Filter by category
bash search-models.sh --category "text-to-video"
Categories:
text-to-image
,
image-to-image
,
text-to-video
,
image-to-video
,
text-to-speech
,
speech-to-text

Get Model Schema (OpenAPI)

IMPORTANT: Fetch schema to see exact parameters for any model.
bash
# Get schema
bash get-schema.sh --model "fal-ai/nano-banana-pro"

# Show only input parameters
bash get-schema.sh --model "fal-ai/kling-video/v2.6/pro/image-to-video" --input

# Quick schema via generate.sh
bash generate.sh --schema "fal-ai/veo3.1"
API Endpoint:
https://fal.ai/api/openapi/queue/openapi.json?endpoint_id={model-id}

Output

Queue Submit Response:
json
{
  "request_id": "abc123-def456",
  "status": "IN_QUEUE",
  "response_url": "https://queue.fal.run/.../requests/abc123-def456",
  "status_url": "https://queue.fal.run/.../requests/abc123-def456/status",
  "cancel_url": "https://queue.fal.run/.../requests/abc123-def456/cancel"
}
Final Result:
json
{
  "images": [{ "url": "https://v3.fal.media/files/...", "width": 1024, "height": 768 }]
}

Present Results to User

Images:
![Generated Image](https://v3.fal.media/files/...)
• 1024×768 | Generated in 2.2s
Videos:
[Click to view video](https://v3.fal.media/files/.../video.mp4)
• Duration: 5s | Generated in 45s
Async Submission:
Request submitted to queue.
• Request ID: abc123-def456
• Model: fal-ai/veo3
• Check status: --status "abc123-def456"

Object Lifecycle (Optional)

Control how long generated files remain accessible:
bash
# Files expire after 1 hour (3600 seconds)
bash generate.sh --prompt "..." --lifecycle 3600

# Files expire after 24 hours
bash generate.sh --prompt "..." --lifecycle 86400

Troubleshooting

Timeout Error

Error: Timeout after 600s
Request ID: abc123-def456
Solution: Use
--status
and
--result
to check manually, or increase
--timeout
.

API Key Error

Error: FAL_KEY not set
Solution: Run
./generate.sh --add-fal-key
or
export FAL_KEY=your_key
.

Network Error (claude.ai)

Go to
claude.ai/settings/capabilities
and add
*.fal.ai
to allowed domains.