ChatGPT is a computer program that is capable of understanding and generating text like a human can. Trained on a large amount of internet text, it is able to answer questions and generate text on many different topics. It functions like a virtual assistant that can write emails, articles, and even code on demand. It has a vast range of capabilities, and its possibilities are endless. Its outputs are not always perfect, and it requires human oversight to fact-check information and consider ethical and compliance concerns. Despite its limitations, ChatGPT has a lot of potential for future development and could become an even more powerful tool with further fine-tuning and development.

QuillBot offers an AI-powered paraphrasing tool to improve writing by providing a variety of ways to rephrase text, with customization options for vocabulary change and an AI-powered thesaurus to find the best synonyms. The tool has several modes for writing styles, integrations with Chrome and Word, and is trusted by millions worldwide, saving time and improving fluency, vocabulary, tone, and style. QuillBot also offers additional tools such as a summarizer, citation generator, plagiarism checker, and grammar checker, among others, to enhance the writing process. The company offers a free and Premium plan with several resources to improve writing, including a knowledge base, educational courses, and a blog.

Grammarly is an AI-powered online writing assistant that provides real-time feedback and suggestions on grammar, spelling, punctuation, clarity, style, and tone. It seamlessly integrates with 500,000+ apps and websites, making it versatile and suitable for individuals, teams, businesses, and educational institutions. Use cases for Grammarly include students and professionals looking to improve their writing quality, businesses and teams aiming to maintain a consistent writing style, and educational institutions seeking to enhance students' writing skills and prevent plagiarism. Grammarly offers a range of plans and resources to suit different needs, starting from $12.08/month for paid plans.