Vapi(@Vapi_AI):The best voice models now sound nearly human. One month of the Humanness Index, 11,000+ blind votes: → Grok TTS: 95 → real human: 100 The Humanness Index uses the same cloned voice, the same script, and a human recording in the set. Listeners are picking the top models almost as often as the real person. Full results: https://t.co/A92qkaQoq4 vote:

2026.07.14 18:00

The best voice models now sound nearly human. One month of the Humanness Index, 11,000+ blind votes: → Grok TTS: 95 → real human: 100 The Humanness Index uses the same cloned voice, the same script, and a human recording in the set. Listeners are picking the top models almost as often as the real person. Full results: vote:

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