Grok Voice Hits Perfect Humanness Score at One-Sixth the Price of Competitors

xAI's Grok Voice scored 100 on Vapi's Humanness Index — matching the human baseline — while pricing at $15 per million characters versus $60–$100 for rivals.

Grok Voice ranked first on Vapi's Humanness Index, scoring a perfect 100 and matching the human baseline, according to @XFreeze. The post, which drew 1,700 likes, highlighted the pricing gap: Grok Voice costs $15 per million characters, compared to $60–$100 for comparable offerings from other providers.

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