LLMs in a simple chat interface where you rely on the training data to provide the answer, are indeed unable to provide reliable answers. LLMs hooked together

LLMs in a simple chat interface where you rely on the training data to provide the answer, are indeed unable to provide reliable answers. LLMs hooked together with search engines, fact repositories (Wikipedia, etc) and other agent tools (for math, theorem proving, code checking, etc) can provide not only a reliable answer, but also a research plan it followed to provide it, and details on the fact-checking, and then discuss it with you. Look at langchain and similar tools.