Which stocks to invest on to take advantage of the AI explosion?

I think it's a pity that OpenAI doesn't have a stock. I know Microsoft owns a big part of it, but I fear that it will make some mistakes with the ChatGPT-Bing integration which could prevent MSFT from properly taking off. Also, MSFT is too big to go to the moon, I feel. Then there's Google which has shown a less than impressive Bard until now. I am also aware that NVidia is essential for current AI, but it seems some big actors are just now planning for in-house chips instead of getting them from NVidia.

I am also wondering where is Apple in all this AI revolution: apparently it's a little unaware of it.

So, all in all, what do you think? I would like not to miss this next big train!