xAI Ships Emotional Voice Cloning on Grok API — and Dares You to Tell It Apart from a Human

xAI's new Grok Voice API can clone a human voice with emotional nuance from a short sample, and the company's own demo challenges listeners to distinguish the original from the copy.

xAI launched voice cloning on its Grok Voice API on Monday, accompanied by a viral demo video that racked up over 5 million views. The video presents two voices — one human, one AI clone — and asks viewers to guess which is which. 'Voice cloning, rich with natural emotion, is now live on the Grok Voice API,' the company announced, linking to a detailed blog post on custom voice capabilities.

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