The Head of Infrastructure Engineering, Uday
Ruddarraju of xAI, the artificial intelligence company founded by Tesla CEO Elon
Musk, announced his resignation, marking the end of his tenure with the company
after being in the position for just over a year.
In a post on X on Tuesday, Ruddarraju reflected on his journey at xAI, during which
he played a pivotal role in the development of Colossus, a massive supercomputer
comprising over 200,000 GPUs, as well as training Grok 3, xAI’s latest AI model.
“After an unforgettable ride, I’ve decided to move on from xAI and yesterday was my
last day. When I first joined, I thought everyone was absolutely nuts for thinking we
could deploy 100K GPUs in 4 months, especially without a fully functioning site.
Watching us go and double that, and most importantly successfully train Grok 3,
made me incredibly proud… and very happy to be wrong,” Ruddarraju stated.
Expressing gratitude to xAI founder Elon Musk and the team, Ruddarraju said,
“Thank you Elon Musk and everyone at xAI for the rare opportunity to help build
something truly foundational with Colossus. It was a privilege to be part of a mission
this bold and to see from the inside what relentless focus and execution really look
like. Reporting into Elon and learning directly from him was definitely the best part
about working at xAI.”
“Special thanks to everyone on the infrastructure team who met impossible
expectations, and the entire research team for your partnership throughout. You’re
the best! I am sure building Colossus and training Grok 3 are definitely highlights of
my career I will remember forever,” he added.
Following his departure, Ruddarraju joined OpenAI, an AI research and deployment
company.
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His joining OpenAI was announced by the President and Co-Founder, Greg
Brockman, who, in a post on X, stated, “welcome david lau, mike dalton, uday
ruddarraju, and angela fan!”
Ruddarraju also confirmed his joining OpenAI after he reposted Brockman’s post,
quoting, “Excited to join you, Greg Brockman!