Nvidia shares climbed nearly 4% on Monday after the world’s most valuable chipmaker confirmed plans to invest as much as $100 billion in OpenAI, marking one of the largest commitments yet in the artificial intelligence arms race. The deal, structured as two parallel transactions, will see Nvidia supply high-performance data center chips while also acquiring a non-controlling stake in the $500 billion-valued startup. OpenAI will purchase the hardware outright, with the first $10 billion in payments triggering the equity investment once a definitive agreement is signed.The pact includes a target deployment of at least 10 gigawatts of Nvidia chips for OpenAI’s infrastructure, with rollout beginning in the second half of 2026. The size of the deal confirms how capital-intensive AI development has become, with compute power now central to corporate strategy.Investors are betting on the continued dominance of Nvidia, whose chips underpin much of the AI ecosystem, but the rapid consolidation of power among Microsoft, OpenAI, and Nvidia is already drawing regulatory scrutiny. The US Justice Department and Federal Trade Commission cleared a framework for potential antitrust probes last year, though the Trump administration has so far taken a more lenient approach than its predecessor.What Does This Mean for Me?Despite these risks, markets are responding positively. Nvidia’s stock, which has gained more than 160% over the past 12 months, surged on news of the partnership, reflecting optimism that the deal could cement its role at the heart of AI infrastructure just as global competition accelerates.