The move comes despite Tesla’s shareholders pushing back
Tesla has disclosed a $2 billion investment in Elon Musk’s AI startup xAI, tying the automaker more closely to Musk’s expanding AI ecosystem despite initial shareholder resistance last year.
The investment is part of xAI’s $20 billion Series E funding round that was announced weeks ago, but was just recently revealed in shareholder letter. Tesla framed the deal as a key step in its “Master Plan Part IV,” aimed at embedding more advanced AI into its physical products.
Beyond capital, however, the partnership is already operational. Tesla already begun supplying Megapack batteries to power xAI’s data centers and integrating xAI’s Grok assistant into some of its vehicle systems.
Musk’s companies grow more intertwined as AI spending accelerates
Founded in 2023 by Elon Musk, xAI builds language-focused AI tools designed to plug directly into Musk’s companies. Its Grok chatbot is integrated into the social platform X and is being adapted to fit some Tesla vehicles.
To support growth, xAI has also recently expanded its computing footprint with large GPU clusters and a supercomputer known as Colossus near Memphis, Tennessee.
The broader funding round that closed in at $20 billion drew heavyweight investors including Nvidia, Cisco, Fidelity, Valor Equity Partners, and the Qatar Investment Authority, giving xAI the capital to scale infrastructure and train larger models.
But Tesla’s investment has since revived governance concerns. In late 2025, shareholders voted against a non-binding proposal that would have authorized Tesla’s board to invest in xAI, with abstentions counted as no votes under company rules.
Despite the failed measure, Tesla proceeded with the deal, arguing the investment is critical to its long-term AI and robotics strategy. The move adds to ongoing scrutiny around Musk’s overlapping leadership roles across Tesla, xAI, and his other ventures.
The transaction is expected to close in the first quarter of 2026, and Tesla leadership has signaled that further spending on autonomy and robotics is likely.
In the meantime, regulators and investors will be watching closely as Musk’s companies grow more interconnected ahead of its highly-anticipated IPO plans in June, raising fresh questions about competition, governance, and the future shape of AI infrastructure.
