Surface is a website for quick AI answers, verified using web resources. Check it out on github here.

Surface demonstrates an interface for verifying claims in model responses, which could be integrated into conversational interfaces like claude.ai and chatgpt.com. With those interfaces, a user typically has to do a manual web search to verify a fact. With a verify button and an interface like this, users could quickly judge LLM answers with external evidence.

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."

While Surface is somewhat useful, I recommend Perplexity for general LLM + searching. Surface is mostly an interface demo.