Anthropic CEO Dario Amodei, OpenAI CEO Sam Altman, and Nvidia CEO Jensen Huang.Getty ImagesFederal data shows that Anthropic, OpenAI, and Nvidia are ramping up their use of foreign talent.All three companies filed more H-1B visa applications in Q2 2026 than they did a year earlier.The increase bucks a broader slowdown in H-1B visa filings across parts of the tech industry.The biggest names in AI are expanding their search for workers abroad as t…