falVideo to videoComing soon

fal-ai/auto-caption

Name: fal-ai/auto-caption
Brand: fal

fal-ai/auto-caption is a video to video tool from fal that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Priced by usage

Pricing

$0.13 per video. The final charge comes from usage.

Limits

Runs: In the background
Returns: video
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`video_url` required	URL or file	—	URL to the .mp4 video with audio. Only videos of size <400MB are allowed.
`txt_color`	text	white	Colour of the text. Can be a RGB tuple, a color name, or an hexadecimal notation.
`txt_font`	text	Standard	Font for generated captions. Choose one in 'Arial','Standard','Garamond', 'Times New Roman','Georgia', or pass a url to a .ttf file
`font_size`	number (whole)	24	Size of text in generated captions.
`stroke_width`	number (whole)	1	Width of the text strokes in pixels
`left_align`	JSON	center	Left-to-right alignment of the text. Can be a string ('left', 'center', 'right') or a float (0.0-1.0)
`top_align`	JSON	center	Top-to-bottom alignment of the text. Can be a string ('top', 'center', 'bottom') or a float (0.0-1.0)
`refresh_interval`	number 0.5 to 3	1.5	Number of seconds the captions should stay on screen. A higher number will also result in more text being displayed at once.
`text_case`	one of default, upper, lower	default	Capitalization to apply to subtitle text. 'upper' converts text to UPPERCASE, 'lower' converts to lowercase, and 'default' preserves the original casing produced by the speech recognizer.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "fal-ai/auto-caption",
    "input": {
      "video_url": "<video_url>"
    }
  }'