An artificial intelligence-powered online writing assistance is called QuillBot. It uses cutting-edge machine learning algorithms to provide users alternative text paraphrases, synonym suggestions, and grammar corrections to assist users improve their writing. QuillBot can be used for a variety of writing tasks, from academic writing to business correspondence. It offers features such as a thesaurus, a summarizer, and a citation tool to make the writing process more efficient and effective. With both free and paid plans available, QuillBot is a useful tool for anyone looking to improve their writing skills.