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Grok TTS

Generate speech with 5 expressive voices, speech tags, and telephony codecs.

index.ts
import { experimental_generateSpeech as generateSpeech } from 'ai';
import { gateway } from '@ai-sdk/gateway';
import { writeFile } from 'node:fs/promises';


const result = await generateSpeech({
  model: gateway.speechModel('xai/grok-tts'),
  text: 'Hello from the Vercel AI Gateway!',
  voice: 'eve',
});


await writeFile('speech.mp3', result.audio.uint8Array);
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xAI
$15.00/1M chars——
03/16/2026