OpenAI's former CTO Mira Murati testified under oath in the Musk v. Altman trial that Sam Altman lied to her about safety standards for a new AI model and routinely told different executives completely opposite things.
Murati said Altman falsely claimed OpenAI's legal department determined a new GPT model did not need to go through the company's deployment safety board. When she checked with general counsel Jason Kwon, she found their accounts did not match. She overrode Altman and sent the model through the board anyway.
Her testimony lines up with a 52-page memo from cofounder Ilya Sutskever previously read into the record, which said Altman "exhibits a consistent pattern of lying, undermining his execs, and pitting his execs against one another." Former board member Helen Toner made similar claims in 2024.
Murati briefly served as interim CEO after the board fired Altman in November 2023 and said OpenAI was at "catastrophic risk of falling apart" during the transition. She left the company in 2024 and founded a competing AI firm, Thinking Machines Lab. The trial is part of Musk's $150 billion lawsuit against OpenAI and Microsoft.











