Using GPT-4o Transcribe Diarize on OpenAI API
Implementation guide · OpenAI Transcribe · OpenAI
OpenAI API exposes GPT-4o Transcribe Diarize through model ID gpt-4o-transcribe-diarize. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-06-07. Next refresh: weekly.
Quick Start
- 1
- 2Use the OpenAI API SDK or REST API to call
gpt-4o-transcribe-diarize— see the documentation for request format. - 3
Code Examples
pip install openaiOPENAI_API_KEYgpt-4o-transcribe-diarizeUse the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="gpt-4o-transcribe-diarize",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Pricing on OpenAI API
| Type | Price (per 1M) |
|---|---|
| Output tokens | $10.00 |
| Audio input | $2.50 |
Capabilities
About GPT-4o Transcribe Diarize
GPT-4o Transcribe Diarize is OpenAI's automatic speech recognition model with integrated speaker diarization, released October 18, 2025. Identifies and labels who is speaking at each moment in multi-speaker audio, producing a diarized_json response with speaker labels and segment timestamps. Optionally accepts 2–10 second reference audio clips for up to 4 known speakers. Requires chunking for audio >30 seconds. Same pricing as gpt-4o-transcribe: $2.50/1M audio tokens in, $10.00/1M text tokens out. API ID: gpt-4o-transcribe-diarize.