There is an open source ranking tool for large language models behind the chatbots. The Chatbot Arena Leaderboard is built and maintained by research group LMSYS and the University of California, Berkeley’s Sky Computing Lab.
Before you decide to use any of the above tools, consider the weaknesses of artificial intelligence and the ways in which the bot may negatively impact your values.
Always consult with your advisors and instructors before using AI in your academic work. Many publishers also have policies around the use of AI in the work they accept for publication.
For detailed discussion on the weaknesses and pitfalls of AI, see https://writingcenter.unc.edu/tips-and-tools/generative-ai-in-academic-writing/