My question is what startup would you make if you had access to GPT-3?
I'll start first: I'd make something like https://grammarly.com or http://www.hemingwayapp.com/ which takes your blog post & removes all the jargon words from it. So it will be easier to read by even kids.
It's equivalent to selling shovels in the gold rush of ML.
That's provided that I would be able to overcome the personal feeling that what I'm selling is useless and I'm essentially scamming every customer.
That might even be extensible to other phone systems, such as basic product support call centers.
If you actually think this is a good idea, feel free to steal it. I have no ability to pursue it.