Production eval + playground platform for LLM apps. Loved by teams who treat prompt engineering as a real discipline.
From Wikipedia
Brain trust was a term that originally described a group of close advisers to a political candidate or incumbent; these were often academics who were prized for their expertise in particular fields. The term is most associated with the group of advisers of Franklin D. Roosevelt during his presidential administration. More recently, however, the use of the term has expanded beyond politics to encompass any specialized group of advisers aligned to a decision maker.