One of the keys to sustained long-term growth is how advanced a company's technology is, as well as how forward-thinking its management is. And if both top management and the research and development department are firing on all cylinders, odds are the rest of the organization is, too.

These days, if a company hasn't anticipated the exciting breakthroughs in artificial intelligence (AI), it's likely not one of the smartest tech companies out there. But the following three leaders are currently in pole position in the AI races; moreover, their stocks are still below all-time highs to varying degrees.

While they're well off last October's lows, long-term investors should still buy these genius AI leaders in any growth portfolio.

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Source Fool.com