If you're investing for the future, artificial intelligence (AI) is important to have investments in. Admittedly, there's a lot of hype right now, but this potential multitrillion-dollar market opportunity isn't worth skipping over.

Unfortunately, some of the hottest AI stocks today, like Nvidia and , trade at lofty prices, making it hard for investors to accumulate shares. The good news is that some lower-priced stocks have big-time long-term growth potential.

You can buy these three AI stocks for just $500 and hold them indefinitely.

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Source Fool.com