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Artificial Intelligence

Sachin Katti leaves OpenAI as Uday Ruddarraju takes over

OpenAI was expected to tell staff that Sachin Katti would leave next month, remain as an adviser, and hand its computing strategy to Uday Ruddarraju, according to the Journal.

Quartz

OpenAI was expected to tell staff that Sachin Katti would leave next month and continue in an advisory role, according to the Journal. Uday Ruddarraju was set to take over the company's computing strategy.

The Journal said Katti had joined OpenAI in late 2025 to lead the Stargate data-centre effort. That work initially slowed after OpenAI did not reach one agreement with SoftBank and Oracle, then made separate deals with them and later added contracts with providers including Amazon Web Services.

Katti also worked on efforts to have OpenAI lease its own data centres rather than rely only on rented capacity. In August, he helped secure a 10-gigawatt lease with SB Energy that included a financial guarantee from Nvidia, according to the Journal.

OpenAI's forecast for computing-power spending had risen to about $750 billion by 2030, compared with about $600 billion earlier in the year, according to the Journal. A separate executive involved in data-centre expansion also left during the summer, and OpenAI said in August that Denise Dresser and Brad Lightcap were leaving, after filing a confidential IPO prospectus with the SEC in June.

Named in this story

People

Sachin Katti
was expected to leave next month and remain an adviser
Uday Ruddarraju
was set to take over OpenAI's computing strategy
Greg Brockman
was the president to whom Ruddarraju reported
Denise Dresser
was one of the senior executives OpenAI said had left in August
Brad Lightcap
was one of the senior executives OpenAI said had left in August

Companies

OpenAI
planned to tell staff about the leadership change and its computing plans
xAI
was Ruddarraju's former employer
SoftBank
was one of the companies OpenAI had failed to strike a joint deal with at first
Oracle
was one of the companies OpenAI had failed to strike a joint deal with at first
Amazon Web Services
was among the providers that later signed computing agreements with OpenAI
SB Energy
signed a 10-gigawatt data centre lease with OpenAI
Nvidia
provided a financial guarantee for the SB Energy lease

Governments and agencies

Securities and Exchange Commission
received OpenAI's confidential IPO prospectus in June

Products and systems

Stargate
was the data centre effort Katti had overseen

How the source tells it

The register was plain and informational, with no sustained emotive framing.

No emotive framing was found in the original.