Andrej Karpathy writes on twitter: "One built-in UI/UX feature of LLM interfaces I'd love is proof... A feature that automatically brings in original material / reputable sources and highlights relevant sections as proof alongside factual generations would be very cool."

Surface is a website for quick AI answers, verified using web resources. Check it out on github here. While Surface is somewhat useful, I recommend Perplexity for general LLM + searching. Surface is mostly an interface demo.