Gemini is the catch-all name Google uses for a ton of AI-related software, from large language models (LLMs), to voice assistants, to coding agents. Gemini is also the heart of other Google services, like NotebookLM. Whether you want to vibe code with the latest AI models or you're simply curious why Google Assistant is disappearing, this guide will cover everything you need to know about Gemini and its features.
It turns out there are so many different versions of Gemini — Gemini 3.5 Flash, Gemini 3.1 Pro, 2.5 Flash, Flash-Lite, Pro, and Deep Think, most recently — that it can be confusing where to start! There's also Nano Banana and Nano Banana Pro, which are really Gemini models too (2.5 Flash Image and 3 Pro Image). And you may be wondering how it compares to GPT-5 and other AI.
