Nvidia announces massive $100 billion investment in OpenAI partnership, providing millions of AI chips for next-generation data centers as stock hits record high.

The deal is a huge shot in the arm for AMD, which has been playing second fiddle to Nvidia in the GPU game for the last several years. While Nvidia's stock is up over 1,300% in the last three years as it became the largest publicly traded company in the world, AMD is up a comparatively soft 200% in the same period.

Two weeks ago, Nvidia Corp. agreed to invest as much as $100 billion in OpenAI to help the leading AI startup fund a data-center buildout so massive it could power a major city. OpenAI in turn committed to filling those sites with millions of Nvidia chips.

Elon Musk questioned how OpenAI can still call itself a nonprofit after striking billion-dollar deals with Nvidia and AMD.

Three years after OpenAI and Nvidia Corp. helped kick off the global artificial intelligence frenzy, the two firms are joining forces to pave the way for a more costly phase of development with a

OpenAI, reportedly the biggest private company on the planet, with a half-trillion-dollar valuation, is also deeply financially connected to Microsoft and Google (the second- and fourth-most valuable publicly traded companies, respectively).

Chipmaker NVIDIA Corp.'s CEO, Jensen Huang, shrugged off concerns regarding competition from Advanced Micro Devices Inc.

OpenAI CEO Sam Altman is thinking long-term about his company's access to the AI chips that are so vital in the AI race.