OpenAI Text-to-Speech API (/v1/audio/speech) - Ace Data Cloud

Synthesize text into natural speech, fully compatible with OpenAI’s /v1/audio/speech. Any OpenAI SDK works by pointing base_url at https://api.acedata.cloud and using your AceData token. The endpoint returns the audio bytes synchronously.

Endpoint: POST https://api.acedata.cloud/v1/audio/speech (alias POST /openai/audio/speech)
Auth: header Authorization: Bearer {token}
Billing: by request text size; ~85% of OpenAI’s official price (see table).

Request parameters

Field	Type	Required	Description
`input`	string	yes	The text to synthesize.
`model`	string	no	`tts-1` (faster) or `tts-1-hd` (higher quality, default).
`voice`	string	no	One of `alloy`, `echo`, `fable`, `onyx`, `nova`, `shimmer` (default `alloy`).
`response_format`	string	no	`mp3` (default), `opus`, `aac`, `flac`, `wav`, `pcm`.
`speed`	number	no	Speech speed 0.25–4.0, default 1.0.

Example

curl -X POST 'https://api.acedata.cloud/v1/audio/speech' \
  -H 'authorization: Bearer {token}' \
  -H 'content-type: application/json' \
  -o speech.mp3 \
  -d '{
    "model": "tts-1-hd",
    "input": "What if one API gave you every AI video model?",
    "voice": "nova",
    "response_format": "mp3"
  }'

The response is the audio file itself (Content-Type: audio/mpeg) — write it to speech.mp3 and play. With the official OpenAI Python SDK:

from openai import OpenAI
client = OpenAI(base_url="https://api.acedata.cloud/v1", api_key="{token}")
client.audio.speech.create(model="tts-1-hd", voice="nova", input="Hello from AceData.").stream_to_file("speech.mp3")

Pricing

Model	OpenAI official	This platform (~15% off)
`tts-1`	$15 / 1M chars	~$12.75 / 1M chars
`tts-1-hd`	$30 / 1M chars	~$25.5 / 1M chars

Billed by request text byte count; the official_price field shows OpenAI’s official price for comparison.

Error codes

Status	code	Description
400	`bad_request`	Empty `input` or invalid parameters.
401	`authentication_failed`	Invalid token.
403	`used_up`	Insufficient balance.
429	`too_many_requests`	Rate limited.
500	`api_error`	Upstream/internal error.