Suprmind offers a unified workspace combining Claude, GPT, Gemini, Grok, and...

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

Suprmind offers a unified workspace combining Claude, GPT, Gemini, Grok, and Perplexity in a single thread. It lets you compare AI responses side-by-side for better insights. Plans start at $20/month with a 7-day free trial—no credit card required.