U.S. tech stocks tumbled this week after Chinese startup DeepSeek released a cheaper artificial intelligence model, triggering fears that American companies like Nvidia and Broadcom face extinction. The sell-off overstates the threat.

DeepSeek built its model using less expensive hardware and training methods. This proves efficiency matters. But it does not prove American AI leaders will collapse. Nvidia still dominates the market for chips that train and run AI systems. Its technology remains superior to what DeepSeek deployed.

The real story involves cost reduction, not displacement. If DeepSeek's approach works, it lowers barriers for startups and smaller companies to build AI. This expands the overall market rather than shrinking it. More players entering AI means more demand for infrastructure, servers, and chips.

History repeats here. When cheaper competitors emerge in tech, leaders either adapt or die. Nvidia has adapted for decades. The company will likely invest in lower-cost products while maintaining its premium offerings. Broadcom, which supplies networking gear for AI data centers, benefits from increased infrastructure spending regardless of which AI models win.

Investors panicked. Markets correct. The fundamentals supporting U.S. AI dominance remain intact.