Suprmind lets you use Grok, Perplexity, Claude, ChatGPT, and Gemini in one...

https://suprmind.ai/hub/pricing/

Suprmind lets you use Grok, Perplexity, Claude, ChatGPT, and Gemini in one thread. At $45 per month, you get access to Debate mode to stress-test your ideas. It is a powerful orchestration engine that makes multi-model research much faster