Is the any AI models that are actually trustworthy and don’t make constant mistakes? Are my problems because I use free versions?

I’m aware everyone uses AI now and I don’t understand why. Every time I use it it makes mistakes and yet I keep using it and then ignoring the answers because its probably wrong 😆

I also am very very clear in my instruction and it makes the wildest mistakes.

So far I’ve tried: claude, gemini, chat gpt, co-pilot and one or 2 lesser known ones. Im aware these are good for different functions, like gemini is better than Claude for video summaries.

Literally i just use them to investigate stuff like health conditions, work research, astrology, and other every day stuff like travelling.

I notice the mistakes increase more over time. Like at the start they seem really smart and then they aren’t, and it’s the same with all.

Is it cause I use free versions? If I pay will they be actually trustworthy??