My trick for this (works on all models) is to generate a dialogue with 2 distinct philosophical speakers going back and forth with each other, rather than my own ideas being part of the event loop. It's really exposed me to the ideas of philosophers who are less prolific, harder to read, obscure, overshadowed, etc.
My prompt has the chosen figures transported via time machine from 1 year prior to their death to the present era, having months to become fully versed in all manner of modern life.
But in terms of my own personal philosophy, I find myself identifying with Schopenhauer, a philosopher I had never heard of in my life before GPT
As for 4.5... I've been playing around with it all day, and as far as I can tell it's objectively worse than o3-mini-high and Deepseek-R1. It's less imaginative, doesn't reason as well, doesn't code as well as o3-mini, doesn't write nearly as well as R1, its book and product recommendations are far more mainstream/normie, and all in all it's totally unimpressive.
Frankly, I don't know why OpenAI released it in this form, to people who already have access to o3-mini, o1-Pro, and Deep Research -- all of which are better tools.
I’d say 4.5 is by far the best at this of released models. It’s probably the only one that thought through both what skepticism and connection Hemingway might have had along for that day and the combination of alienation posing and privilege rfk had. I just retried deepseek on it: the language is good to very good. Theory of mind not as much.
Edit: grok 3 is also pretty good. Maybe a bit too wordy still, and maybe a little less insightful.
GPT-4.0 or Claude tend to flip into people-pleasing mode too easily, while 4.5 seemed to stay argumentative more readily.