falText to speechComing soon

fal-ai/index-tts-2/text-to-speech

Name: fal-ai/index-tts-2/text-to-speech
Brand: fal

fal-ai/index-tts-2/text-to-speech is a text to speech tool from fal that runs in the background and returns audio. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: audio
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
`audio_url` required	URL or file	—	The audio file to generate the speech from.
`prompt` required	text	—	The speech prompt to generate
`emotional_audio_url`	text	—	The emotional reference audio file to extract the style from.
`strength`	number 0 to 1	1	The strength of the emotional style transfer. Higher values result in stronger emotional influence.
`emotional_strengths`	JSON	—	The strengths of individual emotions for fine-grained control.
`should_use_prompt_for_emotion`	true or false	false	Whether to use the `prompt` to calculate emotional strengths, if enabled it will overwrite the `emotional_strengths` values. If `emotion_prompt` is provided, it will be used to instead of `prompt` to extract the emotional style.
`emotion_prompt`	text	—	The emotional prompt to influence the emotional style. Must be used together with should_use_prompt_for_emotion.

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/index-tts-2/text-to-speech",
    "input": {
      "audio_url": "https://storage.googleapis.com/falserverless/example_inputs/index-tts-2/tts_in.mp3",
      "prompt": "Hide! He'\''s coming! He'\''s coming to get us!"
    }
  }'