Blender Copilot is an add-on that integrates OpenAI's ChatGPT to execute commands within Blender using plain text. Users can describe the tasks they want to perform, and the add-on translates these descriptions into executable Python code to automate repetitive workflows. The tool also includes capabilities for generating textures and materials based on text inputs. A built-in history feature allows users to track and reuse previous actions. An active OpenAI API key is required for the add-on to function.