IonQ has some overlap in the artificial intelligence (AI) space because quantum computers can be used to do things like AI model training. IonQ said recently that its quantum computers were used to train large language models (LLMs), and they enhanced the LLMs' understanding of the sentiment being communicated in sentences.

Most of the major players in the AI landscape have already delivered their Q1 earnings reports -- but Nvidia's results are still to come.

With much stronger financials, a more attractive valuation, and a more dominant position in the market, Nvidia is the better AI stock to buy today. This article was originally published on Fool.com. All figures quoted in US dollars unless otherwise stated.