Tesla's $25 Billion Capex Plan Is No Longer About Cars. Here's Why Tesla Could Be the Most Undervalued AI and Robotics Stock of 2026.

Key investments in the $25 billion plan include a Cybercab, Semi, and Optimus robots.

Tesla's future growth is likely to come from robotaxi and Optimus robot-as-a-service revenue streams.

Tesla's (NASDAQ: TSLA) management raised its full-year capital spending estimate to $25 billion from $20 billion on its last earnings call as the company continues to lay the foundation for multiyear earnings growth. It's an exciting year of execution for the company, and what happens this year could set it up for a stellar 2027 and beyond, with artificial intelligence (AI) and robotics at its heart. Here's why.

Management outlined the six key factory investments in late January, and they include:

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On top of this, Tesla is part of the Terafab joint venture with SpaceX to build a massive semiconductor facility that will produce chips for both companies, a move that some think could foreshadow a Tesla/SpaceX merger .

As you can see, these investments aren't just about Tesla's core electric vehicle (EV) business ; they are all intended to establish and secure a supply chain of chips (through Terafab), refined lithium, and lithium batteries, as well as establish production of Tesla's most exciting growth initiatives -- namely, its dedicated robotaxi, Cybercab, and its Optimus robot.

Tesla is an AI stock, but with a key difference. Tesla's solutions embody AI rather than rely on end demand for AI applications. Unlike the hyperscalers who are building out massive infrastructure to support future demand, Tesla is embedding AI in its solutions so they work better.