After Microsoft CEO Satya Nadella announced on X that OpenAI’s GPT-5 is now part of Microsoft 365 Copilot, Copilot, GitHub Copilot, and Azure AI Foundry, competitor Elon Musk quickly predicted that “OpenAI is going to eat Microsoft alive.”

OpenAI is going to eat Microsoft alive

— Elon Musk (@elonmusk) August 7, 2025

During an appearance on CNBC’s “Squawk Box” on Friday, OpenAI CEO Sam Altman dismissed Musk’s tweet with a brief comment: “You know, I don’t think about him that much.”

Altman went on to note that previously, Musk had nothing but criticism for OpenAI.

“I thought he was just, like, tweeting all day [on X] about how much OpenAI sucks, and our model is bad, and, you know, [we’re] not gonna be a good company and all that,” Altman remarked.

Nadella responded to Musk’s grim prediction with humor, posting on X: “People have been trying for 50 years, and that’s the fun of it!”

People have been trying for 50 years and that’s the fun of it! Each day presents new learning opportunities, innovation, partnerships, and competition. I’m excited for Grok 4 on Azure and anticipating Grok 5!

— Satya Nadella (@satyanadella) August 7, 2025

This isn’t the first clash between the two tech magnates. They co-founded OpenAI in 2015, and Musk departed in 2018 after a disagreement over the company’s direction.

Musk’s offer to acquire control of OpenAI for $97.4 billion was denied by Altman earlier this year, with Altman posting a snarky “No thank you, but we will buy Twitter for $9.74 billion if you want” note on social media.

^{Join top CEOs, founders and operators at the Level Up conference to unlock strategies for scaling your business, boosting revenue and building sustainable success.}