In the AI field, Musk has never been behind. According to the latest report, Musk's AI company xAI has announced that the text-to-speech Speech API of Grok is now officially available. This means that Grok is no longer just text on a screen but has officially gained the ability to "speak."

The release of this Speech API marks a key step for xAI in multi-modal interaction and developer ecosystem building. Through this interface, developers can easily integrate Grok's conversational capabilities into various applications, providing a more human-like audio feedback experience for AI.

Indeed, xAI has made frequent moves in the voice field over the past year:

May 2025: The Grok voice mode was launched for the first time.

February 2026: The candidate version of Grok4.2 was opened for public testing.

March 2026: The text-to-speech API was fully opened.

This rapid iteration pace clearly represents a direct challenge to competitors like OpenAI. As the "voice substitute" battle in AI intensifies again, whoever can provide a more natural and emotionally expressive voice may gain an advantage in the next generation of human-computer interaction.

For Musk, each evolution of Grok is part of his grand AI blueprint. With the release of the voice API, whether in smart assistants or entertainment content production, xAI is making AI's voice omnipresent at an unprecedented speed.