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OpenAI

GPT-Realtime mini

GPT-Realtime mini is a cost-efficient realtime model that responds to audio and text inputs in realtime, built for voice features that need low latency and workable unit economics at high volume. Your use subject to OpenAI's Terms & Privacy Policies.

Use with AI GatewayView docs
index.ts
import { gateway } from '@ai-sdk/gateway';


export async function POST() {
  const { token, url } = await gateway.experimental_realtime.getToken({
    model: 'openai/gpt-realtime-mini',
  });


  return Response.json({ token, url, tools: [] });
}
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About GPT-Realtime mini

GPT-Realtime mini launched on October 10, 2025 at OpenAI's DevDay as the cost-efficient entry in the gpt-realtime family. GPT-Realtime mini responds to audio and text inputs in realtime, covering interactive voice use cases that don't need a flagship model on every turn.

The economics are the point. Voice features strain budgets when every session invokes a top-tier model. GPT-Realtime mini exists so in-app assistants, kiosks, and voice helpers can run continuously without the flagship rate, while keeping the low-latency conversational feel that makes voice interfaces usable.

Through AI Gateway, GPT-Realtime mini connects over WebSocket using the AI SDK's realtime hook. Your server mints a short-lived token, the browser handles microphone capture and playback through the hook, and AI Gateway applies the same observability and spend controls as your other models.