Chatbot Arena
Hosted by the University of California, Berkeley; free to use and allows you to use multiple Chatbots, like ChatGPT and Gemini, without creating an account.
Chatbot Arena Old Site (click on Direct Text at the top)
Note: this site may not load well on phones/small screens
Chatbot Arena New Site; in beta
In the drop-down menu at the top, select "Direct Chat". Then you can choose which AI tool you want to use from the other drop-down menu.
Requires an account; tends to work better for academic writing than other GenAI tools
May require login after so many prompts
May require login after so many prompts
May require login after so many prompts