xAI: Grok Voice API — Speech to Text
xAI Grok Voice API — Speech to Text pricing
Grok Voice API — Speech to Text costs $0.040 per hour of audio on Oxyy. That is the pay-as-you-go price after the current 60% discount (Launch Promo; standard price $0.100). It takes audio as input and returns text, from audio files of up to 50 MB. For every xAI model and rate, see Grok API pricing.
Providers
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.
| Provider | Price | Unit |
|---|---|---|
| xAI | $0.040 | per hour of audio |
Capabilities (1)
Pricing
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.
| Rate | Standard price | Charged | Unit |
|---|---|---|---|
| Per hour | $0.100 | $0.040 | per hour of audio |
Discount. Charged rates include the current "Launch Promo" discount of 60% on every rate.
Specifications
- Model ID
grok-stt- Developer
- xAI
- Type
- Speech to text
- Input
- Audio
- Output
- Text
- Tokenizer
- Grok
- Series
- Grok Voice
- Audio input
- Up to 50 MB each
- Endpoint
/v1/audio/transcriptions
Best for
Quickstart
Call grok-stt with a POST to /v1/audio/transcriptions 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 open("interview.mp3", "rb") as audio_file:
response = client.audio.transcriptions.create(
model="grok-stt",
file=audio_file,
)
print(response.text)Availability
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.
Frequently asked questions
What is Grok Voice API — Speech to Text?
How much does Grok Voice API — Speech to Text cost?
What audio files can Grok Voice API — Speech to Text transcribe?
How do I call Grok Voice API — Speech to Text through the API?
What other models does xAI have?
Alternatives to Grok Voice API — Speech to Text
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.


