I am honestly very skeptical of articles like these. Hallucinations are a feature of LLMs. The only ways to "FIX" it is to either stop using LLMs. Or use a super bias some how.
You should be. I don’t know anything about kepa.ai but before even clicking the article I assume they’re trying to sell me something. And “how to fix it” makes me think this is some kind of SEO written for people who think it can be fixed, meaning the article is written for robots and amateurs.