Yes, they can. We have gotten better at grounding LLMs to specific sources and providing accurate citations. Those go some distance in establishing trust.

There is trust and then there is accountability.

At the end of the day, a business/practice needs to hold someone/entity accountable. Until the day we can hold an LLM accountable we need businesses like OpenEvidence and Harvey. Not to say Anthropic/OpenAI/Google cannot do this but there is more to this business than grounding LLMs and finding relevant answers.