xAI: Grok Voice API — Text to Speech

Where this model runs, and what each route costs. Requests are sent to a healthy provider automatically; if one errors, the gateway retries against another serving the same model.

What this model costs on Oxyy, pay as you go. "Charged" is the rate a request is billed at; the standard price is shown beside it for reference.

Discount. Charged rates include the current "Launch Promo" discount of 60% on every rate.

Model ID

grok-tts

Developer

xAI

Type

Text to speech

Input

Text

Output

Audio

Tokenizer

Grok

Series

Grok Voice

Endpoint

/v1/audio/speech

Call grok-tts with a POST to /v1/audio/speech on https://api.oxyy.ai, using your Oxyy API key from the OXYY_API_KEY environment variable. The same key works for every model in the catalog.

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.oxyy.ai/v1",
    api_key=os.environ["OXYY_API_KEY"],
)

with client.audio.speech.with_streaming_response.create(
    model="grok-tts",
    voice="alloy",
    input="Hello from Oxyy.",
    response_format="mp3",
) as response:
    response.stream_to_file("speech.mp3")

The share of requests to this model that completed successfully over the last 30 days. Requests the caller cancelled, and requests still in flight, are not counted. When an upstream provider errors, the gateway retries against another provider serving the same model, so a single provider incident does not necessarily show up here.

Models of the same kind from other vendors, closest in price first. Prices are pay-as-you-go on Oxyy, through the same API key.

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