Many artificial intelligence (AI) stocks have generated fantastic gains for investors over the past couple of years. For instance, Palantir Technologies (NASDAQ: PLTR), SoundHound AI (NASDAQ: SOUN), and Nvidia (NASDAQ: NVDA) all proved to be tremendous investments in 2024. If you had invested $7,000 into each of these stocks at the start of last year, you would have a portfolio worth more than $120,000 by the end of the year, a near five-fold increase in pre-tax wealth.