---
title: "CreateSpeechRequest"
url: "https://kongair.terwilligar.com/apis/openai-api-2-3-0/versions/ea92d048-c746-4ead-a6a8-da28d93137d1/schemas/CreateSpeechRequest"
---

> Full API specification: https://kongair.terwilligar.com/apis/openai-api-2-3-0/versions/ea92d048-c746-4ead-a6a8-da28d93137d1.md

# CreateSpeechRequest

## OpenAPI definition

```yaml
openapi: 3.0.0
info:
  title: OpenAI API
  version: 2.3.0
servers:
  - url: https://api.openai.com/v1
components:
  schemas:
    CreateSpeechRequest:
      type: object
      additionalProperties: false
      properties:
        model:
          description: >
            One of the available [TTS models](/docs/models#tts): `tts-1` or
            `tts-1-hd`
          anyOf:
            - type: string
            - type: string
              enum:
                - tts-1
                - tts-1-hd
          x-oaiTypeLabel: string
        input:
          type: string
          description: The text to generate audio for. The maximum length is 4096
            characters.
          maxLength: 4096
        voice:
          description: The voice to use when generating the audio. Supported voices are
            `alloy`, `ash`, `coral`, `echo`, `fable`, `onyx`, `nova`, `sage` and
            `shimmer`. Previews of the voices are available in the [Text to
            speech guide](/docs/guides/text-to-speech#voice-options).
          type: string
          enum:
            - alloy
            - ash
            - coral
            - echo
            - fable
            - onyx
            - nova
            - sage
            - shimmer
        response_format:
          description: The format to audio in. Supported formats are `mp3`, `opus`, `aac`,
            `flac`, `wav`, and `pcm`.
          default: mp3
          type: string
          enum:
            - mp3
            - opus
            - aac
            - flac
            - wav
            - pcm
        speed:
          description: The speed of the generated audio. Select a value from `0.25` to
            `4.0`. `1.0` is the default.
          type: number
          default: 1
          minimum: 0.25
          maximum: 4
      required:
        - model
        - input
        - voice
```