falText to speechComing soon

fal-ai/chatterbox/text-to-speech

fal-ai/chatterbox/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.

Priced by usage

Pricing

$0.0325 per 1,000 characters of text. The final charge comes from usage.

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

FieldKindDefaultDescription
text requiredtext—The text to be converted to speech (maximum 5000 characters). You can additionally add the following emotive tags: <laugh>, <chuckle>, <sigh>, <cough>, <sniffle>, <groan>, <yawn>, <gasp>
audio_urlURL or filehttps://storage.googleapis.com/chatterbox-demo-samples/prompts/male_rickmorty.mp3Optional URL to an audio file to use as a reference for the generated speech. If provided, the model will try to match the style and tone of the reference audio.
exaggerationnumber
0 to 1
0.25Exaggeration factor for the generated speech (0.0 = no exaggeration, 1.0 = maximum exaggeration).
temperaturenumber
0.05 to 2
0.7Temperature for generation (higher = more creative).
cfgnumber
0.1 to 1
0.5
seednumber (whole)—Useful to control the reproducibility of the generated audio. Assuming all other properties didn't change, a fixed seed should always generate the exact same audio file. Set to 0 for random seed..

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/chatterbox/text-to-speech",
    "input": {
      "text": "I just found a hidden treasure in the backyard! Check it out!"
    }
  }'