Suprmind offers a unified chat experience combining Claude, GPT, Gemini, Grok,...

https://papa-wiki.win/index.php/Is_There_a_Claude_Alternative_with_a_7-Day_Trial_and_No_Credit_Card%3F

Suprmind offers a unified chat experience combining Claude, GPT, Gemini, Grok, and Perplexity in one shared thread. It lets you compare responses side-by-side, helping teams streamline AI evaluation