Anthropic Raises Series B to Build Steerable, Interpretable, Robust AI Systems

They raised $580M in this Series B round, which is interesting:

They provide links to 5 papers on their website [0], but they are either ArXiv links (so preprints, not peer-reviewed) or blog posts on a website that seems to only contain their own material. They do not cite any clients on their website, they do not showcase any product that they sell.

For a company with 40 employees, only over a year in existence, and with little to no "verification" of their work, I wonder how do they raise such a huge amount?

[0]: https://www.anthropic.com/#papers