OpenAI Chief Strategy Officer Jason Kwon wrote that Musk's action's likely "stem from Elon’s regrets about not being involved with the company today."
Musk's attorneys said their client contributed over $15 million to OpenAI in 2016, which was "more than any other donor" and helped the startup build a team of "top talent." The next year, Musk gave nearly $20 million to OpenAI, which the attorneys reiterated was more than other backers. In total, Musk invested over $44 million into OpenAI from 2016 through September 2020, according to the suit.
Kwon didn't dispute Musk's central role in the early days of OpenAI, but he added some other details. For example, Kwon wrote that Musk at one point indicated he needed "full initial control and majority equity" and later suggested that OpenAI merge with Tesla.In the memo, Altman called Musk a hero of his and said the he misses the old version of his co-founder. But he said the company's mission continues.
Before he split with OpenAI, Tesla hired co-founder Andrej Karpathy as senior director of AI. Karpathy returned to OpenAI in 2023. And Musk has been notably vocal in his opposition to OpenAI and its Microsoft partnership in recent years, stating publicly in November that OpenAI had deviated from its original mission.