Subject: Re: Way, way OT: perplexity.ai
It is much better than others I've tried.

But it's still very necessary to not trust, and to verify, everything an LLM so confidently says.
When I asked it to explain the 'five groves' approximation of intrinsic value of Berkshire, it initially provided 5 standard financial ratios as the answer. When I said that was wrong, it corrected itself and then basically got it right.

But it's the best I've seen, and I've bookmarked it, thanks Jim!