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Perplexity AI is a search-focused AI answer engine that synthesizes answers with prominent source citations. Founded 2022. Positioned specifically as an al

ChatGPT is an AI assistant developed by OpenAI, launched publicly in late 2022. As of 2026 it’s one of the largest AI answer engines by traffic and a commo

Google Gemini is Google’s family of AI models, including consumer chat products and enterprise capabilities. Powers many of Google’s AI features including

Claude is an AI assistant developed by Anthropic, launched publicly in 2023. Distinguished by an emphasis on helpfulness with reduced harmful outputs. Used

Schema.org is a shared vocabulary of structured data types for marking up web content in a machine-readable way. Maintained by a collaboration of major sea

Agentic AI is AI that carries out multi-step tasks on its own by deciding what to do next and taking actions inside connected systems, instead of just gene