Cerebras Systems surged 68% on its Nasdaq debut, hitting a $95B market cap. The AI chip maker's Series G included Donald Trump Jr.'s 1789 Capital, and a subsequent Pentagon contract sparked ethics concerns.

Tesla's AI6 chip, using Samsung 2nm process and LPDDR6 memory, delivers a true double performance over AI5. The AI6.5 version will leverage TSMC's 2nm for further enhancements, marking a major step in Tesla's AI hardware strategy.