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POST
/
audio
/
speech
curl https://api.portkey.ai/v1/audio/speech \
  -H "x-portkey-api-key: $PORTKEY_API_KEY" \
  -H "x-portkey-virtual-key: $PORTKEY_PROVIDER_VIRTUAL_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "tts-1",
    "input": "The quick brown fox jumped over the lazy dog.",
    "voice": "alloy"
  }' \
  --output speech.mp3
This response does not have an example.

Authorizations

​
x-portkey-api-key
string
header
required
​
x-portkey-virtual-key
string
header
required

Body

application/json
​
model
required

One of the available TTS models: tts-1 or tts-1-hd

​
input
string
required

The text to generate audio for. The maximum length is 4096 characters.

Maximum length: 4096
​
voice
enum<string>
required

The voice to use when generating the audio. Supported voices are alloy, echo, fable, onyx, nova, and shimmer. Previews of the voices are available in the Text to speech guide.

Available options:
alloy,
echo,
fable,
onyx,
nova,
shimmer
​
response_format
enum<string>
default:mp3

The format to audio in. Supported formats are mp3, opus, aac, flac, wav, and pcm.

Available options:
mp3,
opus,
aac,
flac,
wav,
pcm
​
speed
number
default:1

The speed of the generated audio. Select a value from 0.25 to 4.0. 1.0 is the default.

Required range: 0.25 <= x <= 4

Response

200 - application/octet-stream

OK

The response is of type file.