What is a public benefit corporation, the Anthropic legal structure? ↧ ↧ What is a public benefit corporation, the Anthropic legal structure? AI lab Anthropic, the developer of Claude, is planning one of the biggest IPOs in history as a public benefit corporation, a legal structure that requires management to consider certain broader interests as well as turning a profit for investors. Below is a look at how public benefit corporations ​differ from traditional companies.