Fact Checker is a GPT that specializes in examining and verifying the legitimacy of information in tweets and other claims. It leverages the capabilities of ChatGPT, offering a unique solution for the problem of misinformation online. Fact Checker is designed with the aim of enhancing credibility and reinforcing the truthfulness of shared information. It addresses the growing need for accurate information amid an increasingly digital and interconnected society. Users are able to input specific items or ideas, such as an image of a tweet or a popular claim, and Fact Checker deploys its algorithms to investigate the veracity of those inputs. This GPT also encourages a focus on evidenced-based assertions, seeking to promote a responsible and knowledgeable digital culture. The tool is accessible to users of ChatGPT Plus, enhancing the value and versatility of the base platform. Upon entering the Fact Checker, users are welcomed with a greeting and are prompted to enter the information they wish to verify. This adeptly designed tool brings a potent solution for online fact-checking, contributing to a mutual understanding and a global culture of truth.