7 GitHub followers, 13 Sora authors list Musk tweeted yesterday and only wrote one word: 'SpaceXAI'. The person he transferred is called Troy Luhman. This name has almost no trace in the Chinese world, and it is also similar in the English world - when Business Insider reported on his team in October last year, there was only one sentence written about him: 'There is not much public information about Troy Luhman and Eric Luhman.'. " And these two people are two of the 13 named authors of OpenAI's Sora technology report. They are brothers. The story begins in 2020. In June of that year, the DDPM paper was published, and the diffusion model was proven for the first time to truly generate decent images. At that time, it was still a niche direction, and most people were betting on GANs. Five months later, a paper called "Diffusion Models for Handwriting Generation" appeared on arXiv. Two authors: Troy Luhman and Eric Luhman. There are no universities, no companies, no laboratories - there are only two Gmail addresses under the author column. Two months later, in January 2021, they posted another article. The task of this article is simple yet ruthless: distill the hundreds of steps of diffusion denoising into one step. They call that student model Denoising Student. This paper has been cited 438 times so far. The starting point of the entire technology line of "making diffusion models run fast", including progressive distillation and consistency models, is here. At the time of writing it, these two individuals still had no identities in public records. In 2022, they published another paper on diffusion patching. Two years later, the core concept in Sora's technical report was called spacetime patches. In 2023, OpenAI recruited them. According to his own homepage, he stayed at OpenAI for "three years and a few months": the first two years were all in Sora, with him in Sora 1 and Sora 2; Transfer the remaining time to pre training. When Sora 2 was released in September last year, what was most surprising was its ability to generate catchy dialogue and sound effects - that part of the audio capability was his responsibility. In October 2025, Will DePue will return to OpenAI on vacation and be called upon to form a small team with his brothers, with the goal of making a high-risk bet for ASI that has a low probability of success. And then it was yesterday. The two brothers officially announced their joining of SpaceXAI, the entity formed after xAI merged into SpaceX. In August, they also installed the parent company of Cursor, Anysphere, for $60 billion. Troy said he does long term research with Federico Cassano, the Composer Manager at Cursor, as his partner. Eric posted another sentence: It is our destiny to establish a trans planetary human civilization towards the stars. DePue reposted that these two are truly world-class. Musk flipped on him again and wrote 'SpaceXAI'.