Gemini is Google's family of multimodal AI models, built from the ground up to natively understand text, images, audio, and video together rather than bolting on separate systems for each. It's deeply woven into Google's own ecosystem, appearing inside Search, Gmail, Docs, Sheets, and Android, so users often encounter it without opening a separate app. Gemini supports very large context windows, which is particularly useful for tasks like summarizing long meeting recordings or analyzing an entire video file frame by frame. Its Deep Research mode can autonomously browse dozens of sources and compile a structured report, and its tight integration with Google Workspace makes it a natural fit for teams already living in Google's tools.