I also frequently use GPT to review emails or co-write content, with pretty great results. Takes me minutes instead of hours.
What sort of "groundbreaking" did you expect?
I mean enabling use cases that simply were not possible before. For example LLMs themselves are groundbreaking, but I haven't seen anything enabled by them that's also groundbreaking.
eg I just type // above a block of code and the little guy will read my mind with a full comment.
Personally, I can't understand how someone who has spent time with chatGPT4 can say that as a blanket statement.
On the other hand, if you are viewing things from the perspective of creating a mass market product, I would agree. I am not sure there is going to be a product beyond the scale of the chat interface to the models. Everything will be very niche and customized if the chat interface is not the best use case. How that plays out is what I think will be groundbreaking.
It'll eventually be useful in games when the model sizes come down, but the novelty of being able to talk every NPC into abandoning their scripted goals and starting a family with you and living together in marital bliss until the HDOTU will wear off quickly.
The scary part will be when NPCs are pre-emptively directed by the developer/hypervisor to say and do anything to keep you engaged in every way possible, adapting to your behavior like a meth-dispensing slot machine that broadcasts pornography while you sleep.
For the sake of both fun and bandwidth, we'll have to move back to scripted dialogue and behavior.