Blender GPT is an add-on that integrates OpenAI's language models directly into the Blender interface. Users input natural language prompts, which the tool sends to the OpenAI API along with the current Blender version number. The language model then generates Python scripts to interact with the 3D scene based on the user's instructions.

The tool requires a user-supplied OpenAI API key and allows for the selection of specific GPT models, such as gpt-3.5-turbo. Generated scripts can be configured to execute automatically within Blender's internal Python environment. Alternatively, automatic execution can be disabled, allowing users to review the generated code in the Blender console or as a text data-block in the Text Editor before running it.