I've been working in the intersection of LLMs and Traditional Astrology, for personal knowledge, professional and personal decision-making, and mostly for fun. I'm not a professional astrologer (I'm a CS PhD Professor), but I've studied with some people (some renowned authors on the field) and always had curiosity about it.
I have a python astrology library [1] which I use to generate my astrology chart, as text, to feed it into an LLM (Gemini 2.5 Pro). I then ask it questions about personal characteristics (the easy parts), but, more interesting, I can also ask it to consider some scenarios and it answers back with several hypothesis and how well it fits my character, personal goals, etc. It's like talking to a friend that knows you very very well.
Lately I've been working with a technique called Primary Directions. It's a predictive technique that tries to describe events in your life by means of astrological symbols (things like "Opposition of Saturn reaches the MC by 34.5 years old", which means something "bad" for your career or social position) and use it to check if a specific scenario has worked for me previously and will work in the future, and to ask it for other scenarios that match my personal characteristics and predicted symbolic events. I find LLMs, specifically Gemini Pro, quite good at these kind of things.
I also have fun "playing" with other peoples charts. For instance last night I gave it my chart and list of primary directions to Gemini and asked it if it could find who it was. It said Kurt Cobain. Quite off! But it described a lot of events that could fit my primary directions, like for instance, that Kurt Cobain got his guitar at his 14's or the one at 27 where he died. I didn't die at 27 (but "life issues") and also got my first guitar at 14. I'm also a musician, although an amateur one.
If you're into these kind of things, I created a gist [2] that you can feed into an LLM and talk to Kurt Cobain's chart. Note that it doesn't mention anywhere that it's Kurt Cobain. For fun, ask it something like "Considering the chart and the events predicted by the primary directions, in which ages will this person have some success or public visibility". In my case it answered, among others, 13-14 yo something related to "success, popularity, academic, sports or artistic achievement" (Kurt Cobain seems to got his first guitar at 14, and discovered his vocation), and 23-24 "beginning of career, marriage, or first step that puts the person on the 'map'" (release of the Nevermind album that catapulted Nirvana to the world stage). You can then ask it to match the events to Kurt Cobain, and it will find the real life events that seem to match it quite well.
I find that LLMs are quite good at generating hypothesis, multiple scenarios, and I'm still exploring their strengths and weaknesses (and of astrology as well).
[1] https://github.com/flatangle/flatlib/
[2] https://gist.github.com/joaoventura/68e0aed7c49c389347df98ec...