SpaceX CEO Elon Musk and OpenAI CEO Sam Altman have a troubled relationship.

Fabrice COFFRINI/AFP via Getty Images; Andrew Harnik/Getty Images

It's Altman vs. Musk yet again.OpenAI CEO Sam Altman says the recent bout of attention he's received from SpaceX CEO Elon Musk must mean his company is doing good work."There are a lot of benchmarks that suggest 5.6 sol is the best model in the world right now," Altman wrote on X on Saturday, referring to his company's latest model. "But the most reliable way to tell is that elon is obsessed with me again."Musk turned his attention back to Altman after Apple filed a bombshell lawsuit on Friday, accusing OpenAI, its hardware partner io, and two former Apple employees of stealing trade secrets. OpenAI acquired io, a design firm run by Jony Ive, the former legendary Apple designer, last year as it makes a push into consumer AI hardware.In a brief statement in response to the lawsuit, OpenAI said it has "no interest in other companies' trade secrets."It's just the kind of thing to capture Musk's attention, who spent part of his weekend roasting the OpenAI CEO, whom he repeatedly called "Scam Altman."In response, Altman argued that Musk was also a scammer. "Homeboy you're the one selling public market investors on short-term space datacenters," Altman wrote.