ChatGPT
OpenAI
The most used AI assistant, on the web, on phones and inside other apps.
Read about ChatGPT ›The AI models GeckoCheck tracks
GeckoCheck reads how ten AI assistants answer the queries a brand cares about: whether they name the brand, how they describe it, who they name instead, and which pages they cite. Each model is read and graded on its own, because each answers differently. A brand's plan sets which of them it tracks.
Browse GEO comparisons and resources ›Understand LLM terminology and GEO measurement ›
Gemini
Google's assistant, in its own app and across Android and Google Workspace.
Read about Gemini ›
Google AI Overview
The AI summary at the top of a Google search, seen by people who never open an AI app.
Read about Google AI Overview ›Google AI Mode
Google Search's conversational mode, for longer questions and follow ups.
Read about Google AI Mode ›
Perplexity
Perplexity
An answer engine that searches the web and cites its sources in every answer.
Read about Perplexity ›
Claude
Anthropic
An assistant used widely for research and work, on the web and in its apps.
Read about Claude ›
Copilot
Microsoft
Microsoft's assistant, in Windows, Edge, Bing and Microsoft 365.
Read about Copilot ›
Grok
xAI
The assistant inside X, also on the web and in its own app.
Read about Grok ›
The assistant inside WhatsApp, Instagram, Facebook and Messenger, where people already talk to each other.
Read about Meta AI ›
Europe's leading AI maker, and its assistant Le Chat on the web and in its apps.
Read about Mistral ›Questions about a model?
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