Elon Musk has called on top AI labs and Chinese companies to run checks on other labs' systems. He issued the request while various industry voices are asking for a pause in AI development. Musk himself holds big stakes in AI ventures. Tesla stock fell following the speech. Musk also was listed at the peak of Forbes' annual ranking of the wealthiest Americans. He again raised his proposal to merge Tesla and SpaceX. Separately, reports say child sexual abuse material persists on X, even though Musk vowed to tackle it.