What is Gemini and how does it fit into the Google ecosystem?

Gemini is Google's family of large language models, launched in response to ChatGPT. Gemini comes in three size tiers: Nano (runs on devices), Pro (mid-weight, used in Google Workspace) and Ultra (heaviest model, used in Gemini Advanced). Unlike Claude and ChatGPT, Gemini is deeply integrated into Google's own ecosystem – Gmail, Docs, Sheets, Search and Android.

Gemini vs ChatGPT vs Claude - What's the difference?

The practical difference for most users is about ecosystems. If you work in Google Workspace, Gemini is the natural choice – it's built-in and requires no additional installation. If you work on Microsoft 365, Copilot (based on GPT-4) is more natural. For stand-alone AI assistance without being tied to an office package, Claude and ChatGPT are the leading options.

In terms of performance, the three models are close to each other on standard benchmarks. Gemini is particularly strong on multimodal tasks (image + text) and on tasks that require real-time searching via Google search.

Google Workspace with Gemini - What do businesses get?

With Gemini in Workspace, users can generate emails in Gmail, summarize documents in Docs, create formulas in Sheets, and generate images in Slides—all without leaving the Google environment. For companies that already pay for Google Workspace Business Plus or Enterprise, Gemini is included at no extra cost.

Gemini is the engine behind Google AI Overviews and AI Mode. When Google generates an AI answer in the search results, Gemini produces the text. This means that optimizing for Google AI Mode effectively means optimizing for Gemini to pick your source – and that requires the same kind of authoritative, structured content that GEO and AEO predict.