Nvidia has been the best artificial intelligence (AI) stock to own for the past year and a half. But investors are starting to profit from their huge gains and realize that some of the lofty projections will be difficult to reach.

As a result, some might be looking elsewhere for top-tier AI investments. I have three that I think are worthy competitors that could outperform Nvidia.

Taiwan Semiconductor Manufacturing (NYSE: TSM) is the world's largest contract chipmaker. If a high-tech device has a chip in it, chances are it originated from TSMC, as it's known for short.

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Source Fool.com