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gpt-realtime-2

gpt-realtime-2 is OpenAI's most capable realtime voice model, bringing configurable reasoning effort, stronger instruction following, and more reliable tool use to speech-to-speech voice agents.

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',
  });


  return Response.json({ token, url, tools: [] });
}
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About gpt-realtime-2

gpt-realtime-2 launched on May 7, 2026 as the successor to gpt-realtime-1.5 and OpenAI's most capable realtime voice model. The design goal: voice agents that reason through problems as conversations unfold, instead of only routing or reciting.

Reasoning effort is configurable across levels from minimal to xhigh, so you choose how much thinking each session gets. Low effort is the default and keeps responses quick. Higher effort raises answer quality on complex workflows, at the cost of latency and output tokens. When a caller interrupts mid-thought, gpt-realtime-2 discards the current chain of thought and starts a fresh turn.

Conversation mechanics improved alongside reasoning. Preambles let an agent acknowledge the request out loud while tools run, parallel tool calls fire multiple requests at once, and recovery behavior catches tool failures rather than freezing the call. OpenAI reports higher scores than GPT-Realtime-1.5 on audio reasoning and instruction-following benchmarks.