Why is AI search still bad at trust and context?

I’ve been testing a lot of AI search tools lately, and I keep running into the same three issues:

Accuracy with sources — either the responses don’t cite sources at all, or when they do, the citations don’t hold up.

Bias — answers are often skewed toward a certain narrative instead of presenting a balanced perspective.

Context memory — tools forget what you asked a few prompts ago, which makes complex queries tedious.

Individually, some products do one or two of these well. But I haven’t found anything that consistently delivers all three at once.

Why is this such a hard problem to solve? Is it a technical limitation, a product decision, or something else? Curious to hear what others here think.