CallGPT 6X combines six AI providers (GPT-4, Claude, Gemini, Grok, Mistral, Perplexity) and 20+ models in one workspace. What's different: → Client-side privacy filtering — sensitive data processed in your browser before any query is sent → Real-time cost transparency — see exact cost per message before sending → Seamless model switching — change providers mid-conversation, keep context → Editable artifacts — save outputs as documents or code Privacy by architecture, not policy.