xAI in December 2025: Voice and Education
December 2025 marks a major turning point for xAI with the launch of the Grok Voice Agent API and a historic partnership with El Salvador for AI education.
Grok Voice Agent API
December 17, 2025 — xAI launches the Grok Voice Agent API, enabling developers to build voice agents capable of speaking dozens of languages, calling tools, and searching data in real-time.
Key Features
| Aspect | Detail |
|---|---|
| Compatibility | OpenAI Realtime API |
| Integration | Official LiveKit Plugin |
| Big Bench Audio Score | 92.3% |
| Languages | Dozens supported |
Cutting-edge Performance
According to Artificial Analysis, the Grok Voice Agent has become the leading Speech-to-Speech model, surpassing Gemini 2.5 Flash Native Audio and GPT Realtime on the Big Bench Audio benchmark with a score of 92.3%.
Today, we’re excited to launch the Grok Voice Agent API, empowering developers to build voice agents that speak dozens of languages, call tools, and search realtime data.
🇬🇧 Today, we’re excited to launch the Grok Voice Agent API, empowering developers to build voice agents that speak dozens of languages, call tools, and search realtime data. — @xai on X
LiveKit Integration
The API is compatible with the OpenAI Realtime API specification and available via the official xAI LiveKit plugin. In the coming weeks, xAI plans to launch standalone text-to-speech and speech-to-text endpoints, as well as even more capable audio models.
Single-Sign On for xAI API
December 17, 2025 — xAI introduces Single-Sign On (SSO) to simplify authentication to the xAI API, making it easier for developers to sign in to their accounts.
London Grokathon
December 17, 2025 — xAI announces the London Grokathon scheduled for January 17, 2026: 12 hours of non-stop coding to build applications and show what is possible with Grok.
El Salvador Partnership: Grok for Education
December 11, 2025 — xAI announces a historic partnership with the government of El Salvador and President Nayib Bukele for the Grok for Education program.
World’s First National AI Program
| Aspect | Detail |
|---|---|
| Beneficiaries | Over 1 million children |
| Scope | All public school students |
| Type | Personalized AI tutoring |
| Status | World’s first nationwide program |
This partnership makes El Salvador the first country in the world to adopt Grok on a national scale, offering personalized AI tutoring to every public school student in the country.
Grok for Education: xAI is thrilled to announce a partnership with El Salvador and @nayibbukele to bring personalized Grok tutoring to every public-school student in the country — over 1 million children. The world’s first nationwide AI tutor program.
🇬🇧 Grok for Education: xAI is thrilled to announce a partnership with El Salvador and @nayibbukele to bring personalized Grok tutoring to every public-school student in the country — over 1 million children. The world’s first nationwide AI tutor program. — @xai on X
xAI Hackathon
December 8, 2025 — xAI organized a 24-hour hackathon with hardcore engineers, producing innovative projects like:
- Surf Hack: Grok agent detecting smart contract vulnerabilities in real-time
- GrokHunt: End-to-end talent hunter using Grok to identify profiles on X
- Chorus: Infinite AI Canvas for mapping and collaborating in real-time
What This Means
December 2025 shows xAI accelerating on two strategic fronts:
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API and Developers: The OpenAI compatible Grok Voice Agent API positions xAI as a serious alternative for voice applications, with state-of-the-art performance.
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Societal Impact: The partnership with El Salvador demonstrates xAI’s ambition to use AI for education at scale, a concrete and impactful use case.