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On December 18, 2025, xAI made an official announcement, launching the Grok Voice Agent API. This move grants developers access to the highly reliable voice agent technology, which has already undergone rigorous testing and validation in Tesla vehicles as well as various mobile applications. One of the standout features of this API is its extensive language support, catering to dozens of languages across the globe. In terms of performance, it boasts an impressive average first - audio response time of under 1 second, ensuring swift and seamless interactions. Moreover, in the Big Bench Audio evaluation, a well - recognized benchmark in the field, the Grok Voice Agent API has secured the top position, demonstrating its superior quality. And when it comes to pricing, it offers great value at just $0.05 per minute.
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