Friday is an AI writing tool that can help create high-quality blog articles, letters, and marketing copy. It offers over 40 templates and allows users to choose their preferred tone and add keywords to sharpen results. The tool also provides the option to rewrite output until the user is satisfied with the result. Friday is a user-friendly tool that employs natural language processing and artificial intelligence to generate unique and appealing content. Users can start with a free trial and access a community for support.