Suprmind offers a way to use Grok alongside GPT, Claude, Gemini, and Perplexity...

https://bizzmarkblog.com/stop-reconciling-tabs-how-suprmind-ends-your-copy-paste-between-grok-and-claude/

Suprmind offers a way to use Grok alongside GPT, Claude, Gemini, and Perplexity in a single thread, making it easier to compare answers side by side. Plans start at $19 with the Spark tier and include a 7-day trial with no credit card required