OpenAI API exposes GPT Realtime 2.1 through model ID gpt-realtime-2.1. 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
- 2Use the OpenAI API SDK or REST API to call
gpt-realtime-2.1— see the documentation for request format. - 3
Code Examples
Install
pip install openaiAPI key
OPENAI_API_KEYModel ID
gpt-realtime-2.1Use 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",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Pricing on OpenAI API
| Type | Price (per 1M) |
|---|---|
| Input tokens | $4.00 |
| Output tokens | $24.00 |
Capabilities
VisionMultimodalReasoningAudio
About GPT Realtime 2.1
OpenAI Realtime API flagship speech-to-speech model (gpt-realtime-2.1) with text/audio/image input, text/audio output, 128K context, reasoning token support.
Model Specs
Released2026-07-06
Context128K
Knowledge cutoff2024-09