Sadly they do not seem to have all the papers. ArXiV is missing completely, e.g....

Xeophon on Feb 8, 2023 | parent | context | favorite | on: Ask HN: How do you find stuff on the internet now?

Sadly they do not seem to have all the papers. ArXiV is missing completely, e.g. searching for „Attention is all you need“ does not return the paper which has been published on NeurIPS

nekopa on Feb 8, 2023 [–]

I found it on there. It seems to include ArXiV.