OpenAI: GPT Realtime Whisper
Streaming speech-to-text model for low-latency transcript deltas from live audio
- Model lab
- OpenAI
- Model family
- whisper
Quickstart
Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to openai/gpt-realtime-whisper.
import os
import requests
base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "openai/gpt-realtime-whisper"
response = requests.post(
f"{base_url}/chat/completions",
headers={
"Authorization": f"Bearer {api_key}",
"Content-Type": "application/json",
},
json={
"model": model_id,
"messages": [{"role": "user", "content": "Hello!"}],
"stream": False,
},
timeout=60,
)
response.raise_for_status()
print(response.json())Use the familiar OpenAI-style chat request format to make model integration easier.
GPT Realtime Whisper API Pricing
| Type | Price information |
|---|---|
| Audio input · Billed by input audio duration | USD 0.0002272 / second |
Performance
Measured on the Moduck gateway across live traffic, hour by hour over the last 24 hours. Time to first token is how long before anything appears; throughput is how fast the answer is written after that; end-to-end latency is the whole round trip. Figures are medians unless the card says otherwise.
Performance trends
Availability
Uptime is the share of time at least one provider serving this model responded. Availability is stricter: the share of requests actually served. A provider that answers but fails part of the traffic lowers availability without lowering uptime. Both cover the last three days.
GPT Realtime Whisper Compare models
| Model | Input price | Output price | Context window | Capabilities |
|---|---|---|---|---|
| GPT Realtime WhisperThis page | USD 0.0002272 / second · Billed by input audio duration | Not billed on output | 16,000 | Text output |
| Whisper 3 Large | USD 0.00184 / 1M tokens | USD 0.00184 / 1M tokens | 448 | Text output |
| Whisper Large v3 Turbo | USD 0.00184 / 1M tokens | USD 0.00184 / 1M tokens | 448 | Text output |
| Gemini 3.5 Transcribe Live | USD 0.00012 / second · Billed by input audio duration | Not billed on output | — | Text output |
| Grok Voice STT 1.0 | Price currently unavailable | Price currently unavailable | 15,000 | Text output |
Model specifications
- Input
- audio
- Output
- text
- Context window
- 16,000
- Maximum output
- 2,000
- Release date
- 2026-05-07
- Attachments
- No
- Reasoning
- No
- Tool calling
- No
- Temperature setting
- Yes
- Open weights
- No
Frequently asked questions
What is GPT Realtime Whisper for?
Streaming speech-to-text model for low-latency transcript deltas from live audio
What inputs and outputs does GPT Realtime Whisper support?
Recorded inputs: audio; outputs: text.
How is GPT Realtime Whisper priced?
The pricing table shows the current recorded Moduck price. For example: Audio input · Billed by input audio duration USD 0.0002272 / second. See the pricing table for all units, variants, and conditions.
What specifications are recorded for GPT Realtime Whisper?
Current model records list Context window 16,000 tokens; Maximum output 2,000 tokens.
What model parameter does the Quickstart use?
The example uses openai/gpt-realtime-whisper. This value comes from the page identifier and is not confirmed as a callable Moduck public ID.
Can I call this model through the Moduck API now?
This page has no verified Moduck API call for this model. A Quickstart example or reserved ID does not establish access; check the models available to your account.