GPT-4o Transcribe Diarize on OpenAI API

Name: GPT-4o Transcribe Diarize on OpenAI API
Brand: OpenAI

Serverless

Last refreshed 2026-06-07. Next refresh: weekly.

Why use GPT-4o Transcribe Diarize on OpenAI API?

OpenAI API offers GPT-4o Transcribe Diarize with pay-as-you-go pricing at $10.00/1M output tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.

Input / 1M

Output / 1M

$10.00

Cache

Not sourced

Batch

Not sourced

Setup recipe

Python + curl

Install

pip install openai

Auth

export OPENAI_API_KEY=...

Call

import os
from openai import OpenAI
client = OpenAI()  # reads OPENAI_API_KEY from env
response = client.chat.completions.create(

Model ID

gpt-4o-transcribe-diarize

Request example

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)

Gotchas

Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.

Pricing

Type	Price (per 1M)
Output tokens	$10.00
Audio input	$2.50

Capabilities

MultimodalAudio

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.