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

https://andysexpertblog.nexorafield.com/posts/why-does-claude-max-cost-100-or-200-if-it-s-still-one-provider

Suprmind offers a unified workspace combining Claude, GPT, Gemini, Grok, and Perplexity in a single thread, making it easier to compare AI outputs side-by-side. Plans start at $20, similar to Claude Pro, with a 7-day trial that requires no credit card.