STRIDE GPT is an AI-powered threat modeling tool that leverages Large Language Models (LLMs) to generate threat models and attack trees for applications based on the STRIDE methodology. Users provide application details, such as the application type, authentication methods, and whether the application is internet-facing or processes sensitive data. The model then generates its output based on the provided information. Features include suggesting possible mitigations for identified threats, supporting DREAD risk scoring, generating Gherkin test cases, and analyzing GitHub repositories for comprehensive threat modeling. The tool is accessible via a web application and is also available as a Docker container image for easy deployment.