Nvidia has been the top AI stock pick for several years now, and it remains a strong choice for the future. But is it the best AI stock to buy in July?

Nvidia supplies the best data center chips for artificial intelligence (AI) development, and with a market capitalization of $3.6 trillion, it's now one of the largest companies in the world. C3.ai (NYSE: AI) developed a portfolio of over 130 ready-made applications to help businesses accelerate their adoption of AI.

Insiders at artificial intelligence chipmaker Nvidia have dumped more than $1 billion in stock over the last year, according to a Financial Times report. About half of those sales occurred during the last month as the market notched new highs and shook off geopolitical tensions.