Elon Musk’s artificial intelligence startup xAI is expected to close a $15 billion round at a $230 billion pre-money valuation next month, sources familiar with the matter told CNBC’s David Faber.

The deadline for allocation is the end of day on Tuesday, with the round expected to close on Dec. 19, the sources said.

This confirms earlier CNBC reporting that the company was raising $15 billion. The Tesla CEO later called the report on the round “False” in a post on the social media platform X.

At the time, sources told CNBC that xAI would use a large portion of the money for funding graphics processing units responsible for powering large language models.

CNBC had previously reported in September that the startup was looking to raise $10 billion at a $200 billion valuation.

The funding round is yet another sign of the insatiable demand for AI tools. Companies, including OpenAI and Anthropic, have raised billions and reached sky-high valuations as investors pour more money into companies building foundational AI models.

Sam Altman’s OpenAI finalized a $6.6 billion-share sale at a $500 billion valuation last month, and Reuters recently reported that the ChatGPT maker was eying a $1 trillion initial public offering.

Anthropic closed a $13 billion funding round in September that roughly tripled its valuation from March.

Musk’s xAI is responsible for creating the Grok chatbot that has come under fire for disseminating hate speech, including antisemitic content. The company recently debuted Grokipedia, an AI-powered competitor to Wikipedia.

In March, Musk announced the merger of xAI with X in a deal valuing the social media platform at $33 billion.