Google Gemini is an advanced AI assistant built on the powerful Gemini family of large multimodal language models developed by Google DeepMind. Launched in February 2024 as the successor to Bard and Duet AI, Gemini brings together context-aware chat, deep reasoning, and multimodal capabilities—meaning it can process and respond to inputs across text, images, audio, and video formats. Its model lineup includes optimized variants like Gemini 2.5 Flash (for speed and general use), Gemini 2.5 Pro (for complex reasoning and coding tasks), and Flash‑Lite (for cost‑efficient scaling) Gemini is accessible across platforms—via web, Android, iOS, Wear OS, and ChromeOS—and powers features such as chat, writing assistance, reasoning, code generation, real-time web search, image editing, video generation, and more. Notable capabilities include AI‑powered image editing via the “Nano Banana” (Gemini 2.5 Flash Image), which enables consistent multi‑turn edits, background/style changes, and creative transformations while preserving identity and watermarking outputs. Google has also rolled out tools like Gemini CLI—a free, open-source command‑line interface for developers—enabling terminal-based access to Gemini 2.5 Pro, code assistance, task management, and multimedia generation. Gemini is deeply integrated into Google’s ecosystems, including Workspace, Photos, Chat, Meet, Docs, Drive, and Videos (Vids), delivering features like file summarization, automated meeting notes, PDF editing, and AI-generated short videos. At I/O 2025, Google announced further upgrades—Gemini Live with camera and screen-sharing capabilities, deeper video and animation tools, expanded reasoning tools, and new AI subscription tiers (AI Pro and AI Ultra) for enhanced access and performance.