Using GPT Realtime 2.1 Mini on OpenAI API

Implementation guide · GPT Realtime 2 · OpenAI

Serverless

OpenAI API exposes GPT Realtime 2.1 Mini through model ID gpt-realtime-2.1-mini. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-10-19. Next refresh: weekly.

Quick Start

1
Create an account at OpenAI API and generate an API key.
2
Use the OpenAI API SDK or REST API to call gpt-realtime-2.1-mini — see the documentation for request format.
3
You'll be billed $0.60/1M input, $2.40/1M output tokens. See full pricing.

API Portal Documentation Pricing Model Card

Code Examples

Install

pip install openai

API key

OPENAI_API_KEY

Model ID

gpt-realtime-2.1-mini

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-realtime-2.1-mini",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on OpenAI API

Type	Price (per 1M)
Input tokens	$0.60
Output tokens	$2.40

Capabilities

VisionMultimodalReasoningAudio

About GPT Realtime 2.1 Mini

OpenAI Realtime API distilled realtime voice model (gpt-realtime-2.1-mini), faster/cheaper than 2.1, 128K context.

Full model details →

Model Specs

Released2026-07-06

Context128K

Knowledge cutoff2024-09

OpenAI

San Francisco, California, United States