GPT Minus 1 is an innovative online tool designed to take text generated by the GPT-3 language model and modify it by removing specific words to create gaps or omissions. This altered text can then be used for various purposes, such as educational exercises, creating puzzles, or enhancing creativity by prompting users to fill in the blanks. By offering a unique way to interact with AI-generated content, GPT Minus 1 provides users with a fresh perspective on text manipulation and language experimentation.