LLM Reference
OpenAI API

Using GPT-4o Realtime Preview (12-17) on OpenAI API

Implementation guide · GPT-4o Realtime · OpenAI

Serverless

OpenAI API exposes GPT-4o Realtime Preview (12-17) through model ID gpt-4o-realtime-preview-2024-12-17. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-05-19. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenAI API and generate an API key.
  2. 2
    Use the OpenAI API SDK or REST API to call gpt-4o-realtime-preview-2024-12-17 — see the documentation for request format.

Code Examples

Install
pip install openai
API key
OPENAI_API_KEY
Model ID
gpt-4o-realtime-preview-2024-12-17

Use 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-realtime-preview-2024-12-17",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on OpenAI API

Capabilities

VisionCode ExecutionAudio

About GPT-4o Realtime Preview (12-17)

GPT-4o Realtime Preview (12-17) is OpenAI's GPT-4o Realtime model. It is deprecated (originally released 2024-12-17); use it only for reproducing earlier results or evaluating drift over time.

Model Specs

Released2024-12-17
Context128k
ArchitectureDecoder Only
Knowledge cutoff2024-06

Provider

OpenAI API
OpenAI API

OpenAI

San Francisco, California, United States