A secretive technology investment group that is a top backer of Elon Musk’s companies will close to external investors, after racking up such big gains that it is no longer dependent on outside financing.

AI released two AI "companions" on its Grok platform, a Japanese anime girl named "Ani" and an animated red panda called "Rudi."

SpaceX has invested $2 billion in Elon Musk’s AI venture xAI, according to The Wall Street Journal. The investment makes up nearly half of the company's recent $5 billion equity round. The investment marks SpaceX’s first capital infusion into xAI and one of its largest into another firm,

In a familiar critique of corporate structures, Musk also weighed in on the ideal environment for fostering such long-term, existentially focused AI. He declared, “For long-term optimization, it is better to be a private than a public company, as the latter is punished for long-term optimization beyond the reward cycle of stock portfolio managers.”

Neuralink labeled itself in April as a “small disadvantaged business” in a federal filing with the U.S. Small Business Administration.

SpaceX has agreed to invest $2 billion in Elon Musk 's artificial intelligence company xAI. The investment makes up nearly half of the company's recent $5 billion equity round, according to investors cited by The Wall Street Journal.

The NAACP is appealing the Shelby County Health Department's decision to approve the use of gas turbines at one of xAI's Memphis campuses.

Elon Musk's xAI startup is swimming in controversy after launching Grok 4, the latest version of its snarky AI chatbot. Last week, the company boasted that Grok 4 achieved higher scores than quite a few other large language models (LLMs) on various industry benchmarks.