After Effects Expression Wizard is a GPT designed to assist users in creating and optimizing expressions in Adobe After Effects. Created by Off the Wall Communication AB, this tool is based on OpenAI's ChatGPT and operates like an application on top of it. The primary purpose of this tool is to support animators, video editors, motion graphics artists, and other creative professionals who use After Effects in creating interactive animations and applying complex manipulations on visual elements. Its functionalities range from fixing and optimizing existing expressions to creating new ones for specific effects such as bounce and looping wiggle. In addition, it can make procedural amendments to the expression code, effectively enhancing the performance of animations. To interact with this GPT, users need to pose their requests or questions in the form of prompts, such as 'Fix this expression,' or 'Create a looping wiggle expression.' This tool is readily available to users with a ChatGPT Plus subscription and requires signing up to access its full features. In conclusion, the After Effects Expression Wizard GPT serves as a reactive assistant, ready to help you problem-solve or create within the After Effects software.