The 6 biggest revelations from Greg Brockman's second day of testimony in the OpenAI showdown

Greg Brockman in court with Sam Altman (R) last week

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• OpenAI's compute costs have surged to $50 billion in 2026 from $30 million in 2017, Brockman said.
• Brockman said Musk sought a big win for OpenAI before considering any for-profit ventures.
• Musk demanded 51% of OpenAI but faced resistance from founders, leading to heated confrontations.

Greg Brockman's second day of testimony revealed many insights into Elon Musk's interactions with OpenAI's founders.