Perplexity AI Search Engine AI Search EngineFreemiumGPT-4, proprietary blend models AI-powered search and conversational engine that delivers cited answers and research assistance in real time.
Microsoft Copilot 365 AI AssistantPaidProprietary (powered by GPT-4 and Microsoft Graph) AI assistant integrated into Microsoft 365 apps like Word, Excel, Outlook, and Teams for enhanced productivity.
Claude (Anthropic) Advanced AI Assistant AI ChatbotsFreemiumClaude (Pro / Max) Anthropic’s assistant focused on helpfulness and safety, offered with free and paid Pro/Max plans for heavier usage.
