Model APIAudioNative OpenAI FormatPOST Text to SpeechOn this pageText to Speech POST /v1/audio/speech Request Parameters ParameterTypeRequiredDescriptionNone Request Example { "body": { "model": "tts-1", "input": "string", "voice": "alloy" }} Response Fields(200) Field NameTypeDescriptionNo structured response fields (may be binary or empty response body)