Request body which must comply to the following JSON Schema:
{
"required" : [ "input", "model", "voice" ],
"type" : "object",
"properties" : {
"model" : {
"description" : "One of the available [TTS models](/docs/models/tts): `tts-1` or `tts-1-hd`\n",
"anyOf" : [ {
"type" : "string"
}, {
"type" : "string",
"enum" : [ "tts-1", "tts-1-hd" ]
} ],
"x-oaiTypeLabel" : "string"
},
"input" : {
"maxLength" : 4096,
"type" : "string",
"description" : "The text to generate audio for. The maximum length is 4096 characters."
},
"voice" : {
"type" : "string",
"description" : "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](/docs/guides/text-to-speech/voice-options).",
"enum" : [ "alloy", "echo", "fable", "onyx", "nova", "shimmer" ]
},
"response_format" : {
"type" : "string",
"description" : "The format to audio in. Supported formats are `mp3`, `opus`, `aac`, and `flac`.",
"default" : "mp3",
"enum" : [ "mp3", "opus", "aac", "flac" ]
},
"speed" : {
"maximum" : 4.0,
"minimum" : 0.25,
"type" : "number",
"description" : "The speed of the generated audio. Select a value from `0.25` to `4.0`. `1.0` is the default.",
"default" : 1.0
}
},
"additionalProperties" : false
}
