DiagramGPT by Eraser is an AI tool that leverages OpenAI's GPT-4 to create technical diagrams from code or plain language inputs. It currently supports entity relationship, cloud architecture, and sequence diagrams, with flowcharts on the horizon. Users can edit the generated diagrams using Eraser's diagram-as-code syntax, within the Eraser whiteboard tool tailored for engineering teams.

DiagramGPT finds utility in various scenarios like architecture planning, whiteboard interviews, documentation, wireframing, and brainstorming. Eraser offers resources, templates, and integrations, along with designDocs.dev for further documentation and design assets. Feedback and suggestions for improvements can be shared through email, Twitter, or the Slack community, making DiagramGPT a handy solution for engineering teams seeking efficient technical diagram generation.