Google Gemini
In one line
Google Gemini is Google's multimodal LLM and chatbot brand, powering AI Overviews, the Gemini app and Workspace integrations as a connected family of answer surfaces.
Going deeper
Gemini is Google's multimodal LLM family, the post-Bard rebrand. The same model line shows up in the Gemini app (formerly bard.google.com), AI Overviews and Workspace features like 'Help me write', so it is best treated as the umbrella for Google's AI surfaces.
Treat the Gemini app and AI Overviews as different channels. AI Overviews are a mass surface attached to ordinary search; the Gemini app is a deliberate chatbot session with longer, more contextual prompts. The optimisation work is not the same.
External data access for training and grounding is gated by Google-Extended. If you want to be eligible for citation in Gemini answers, unblocking Google-Extended in robots.txt is step one.
Related terms
AI Overview
Google AI Overviews is the AI-generated summary that appears above the standard results in Google Search — one of the most prominent zero-click surfaces today.
GEO·AEOGoogle-Extended
Google-Extended is the separate user agent Google uses for training Gemini and Vertex AI, letting site owners control AI training access independently from regular search indexing.
GEO·AEOMicrosoft Copilot
Microsoft Copilot is Microsoft's AI assistant integrated across Bing, Edge and Office — and one of the AI search surfaces with the strongest enterprise reach.
GEO·AEOChatGPT Search
ChatGPT Search is the feature that lets ChatGPT combine its trained knowledge with live web results, citing sources alongside the answer.
GEO·AEOClaude.ai
Claude.ai is Anthropic's consumer-facing chat interface, a GEO surface that punches above its weight on long-form document work and research-heavy prompts.
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