The 'Spell Check GPT' is a GPT specifically designed to serve as a meticulous grammar and spelling assistant. As a powerful tool, it helps ensure that written communications are accurate, clear, and professional by correcting spelling and grammatical errors. It is useful for various processes and audiences, including writers, students, professionals and anyone needing assistance with English writing. Utilizing the underlying capabilities of ChatGPT, Spell Check GPT validates input sentences for correct spelling and grammar and provides suggestions for improvements. The tool is also equipped to determine the sensibility of sentences and can give advice on how to enhance the text quality. Users can interact with this GPT using prompt starters like 'Is this spelled correctly?', 'Can you check my grammar?', 'Does this sentence make sense?', and 'How can I improve this text?'. To use Spell Check GPT, one needs to have the underlying ChatGPT Plus, and sign up is required to access this tool. It's important to note that the Spell Check GPT is a third-party tool created by murphymike.us and is not directly managed by OpenAI or the ChatGPT team. This tool effectively takes advantage of the extensibility of ChatGPT, applying its natural language processing power in the context of grammar and spell checking to enhance written communication with precision.