After China’s Kimi Moment, US AI companies suddenly tout open-weight models in letter Major U.S. AI companies and CEOs issued a group statement supporting open-weight models after China's Kimi-K3 open-weight model alarmed the U.S. AI industry, in what appears to be an effort to prevent U.S. government regulation of such models, including those from China. After China’s Kimi-K3 open-weight model spooked the U.S. AI industry, major AI companies and CEOs have suddenly issued their own group statement in favor of open-weight models in the United States. That’s no coincidence. This looks like an effort to stop U.S. government regulation of open-weight models, including from China.