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gpt-realtime-2.1

GPT-Realtime-2.1 updates GPT-Realtime-2 with improved alphanumeric recognition, silence and noise handling, and interruption behavior. It supports speech-to-speech interactions with configurable reasoning effort, instruction following, and tool use for complex voice-agent workflows.

index.ts
import { gateway } from '@ai-sdk/gateway';
export async function POST() {
const { token, url } = await gateway.experimental_realtime.getToken({
model: 'openai/gpt-realtime-2.1',
});
return Response.json({ token, url, tools: [] });
}

Playground

Try out gpt-realtime-2.1 by OpenAI. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.

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Voice agent

Talk to a realtime agent. It listens to your voice and replies with audio.

Idle
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Start the session and ask the agent something.

Providers

Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Latency
Input
Output
Capabilities
ZDR
No Training
Release Date
OpenAI
Legal:Terms
Privacy
$4/M+1 more
$24/M
07/09/2026

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