When your rival publishes a memoir and you spend the next 48 hours publicly fact-checking it, the feud has moved beyond polite disagreement. That’s roughly where OKX founder Star Xu and Binance CEO Changpeng Zhao find themselves, trading pointed accusations about compliance culture, contractual history, and who’s actually walking the regulatory talk.

The catalyst was CZ’s memoir, Freedom of Money, published on April 8, 2026. Xu took issue with what he described as inaccuracies in the book regarding his past involvement with OKCoin, including disputes over job roles, contracts, and personal claims. But the real fireworks came when Xu pivoted from biographical corrections to a broader indictment of Binance’s approach to regulatory compliance.

The billion-dollar bet that wasn’t

CZ apparently floated the idea of a $1 billion public wager to settle disputes. Xu declined, and not because he couldn’t afford it.

“As OKX’s CEO, given our compliance culture, I’m not in a position to take part in such public ‘bets.'”