The Grading Assistant for Teachers is a GPT designed to aid educators in the evaluation of student assessments. Using this GPT, teachers can integrate both marking guides and student assessments in PDF format. The GPT can interpret the evaluation criteria from the marking guide and apply them to the submitted student assignments. Subsequently, the tool is capable of providing not just a grade, but also detailed feedback on the work based on the evaluation criteria set in the marking guide.The GPT operates on top of OpenAI's language model, ChatGPT. Users must sign up and login to their ChatGPT account to access this grading tool. In addition to grading, the tool can be prompted to provide feedback on an array of assignments making it adaptable to various forms of academic or project work. The tool employs a user-friendly interaction approach. Users can initiate tasks using prompts like 'Grade this essay for me', 'Provide feedback on this assignment', 'What mark does this project get?', and other similar phrases.Developed by Mr Jamie Rood and managed on marking.ai, the Grading Assistant for Teachers GPT is a tool aiming to streamline the grading process, offering real-time, accurate and comprehensive feedback on student assessments. By leveraging artificial intelligence capabilities, it significantly reduces the time-consuming nature of manual grading while ensuring objective and detailed feedback for students.