Wonderful innovation to use handy buttons that invoke specific prompts, reducing user's cognitive load from an otherwise empty chat input box.<p>The graph reminds me of concept maps used in GOFAI knowledge representation and acquisition.<p>Obvious dimensions for improvement include sets of button-prompts specialized for various LLMs including open source ones. Plus the set of buttons could be dynamically configured per user per topic per graph using reinforcement learning or a recommendation engine technique.<p>Sign me up.