DiagramGPT is an AI tool developed by Eraser that utilizes OpenAI's GPT-4 to generate technical diagrams in a diagram-as-code format. It supports entity relationship diagrams, cloud architecture diagrams, and sequence diagrams, with flowcharts soon to be added. Users can edit the diagrams in Eraser's whiteboard tool, which employs diagram-as-code syntax. DiagramGPT finds applications in architecture diagrams, whiteboard interviews, documentation, wireframing, and brainstorming. Eraser offers a range of resources, templates, integrations, and design documentation at designDocs.dev. Users can provide feedback and suggest improvements via email, Twitter, or the Slack community. DiagramGPT simplifies diagram generation, particularly for engineering teams, while Eraser provides a comprehensive suite of tools and services for diagramming, documentation, and collaboration.