Gemini
: How to use it, features, and the business problems it solves
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What is Gemini?
Gemini is an AI assistant provided by Google. Built on the latest Gemini models (the 3.x family), it runs question answering and writing plus Deep Research, Gemini Live (voice), Canvas, and image/video generation in a single app. It integrates deeply with Google services such as Gmail, Google Docs, Search, Google Flow for video generation, and Gemini Notebook for research support. Pricing is free, plus Google AI Plus ¥725 / Pro ¥2,900 / Ultra ¥14,500– (monthly).
Business problems it solves
About "Gemini"
What is Gemini
Gemini is an AI assistant provided by Google. Built on the latest Gemini models (the 3.x family), it handles question answering and writing, and also brings Deep Research (automated research), Gemini Live (voice conversation), Canvas (collaborative editing), and image and video generation together in a single app. Its biggest distinguishing feature is deep integration with Google's suite of services, including Gmail, Google Docs, Google Search, Google Flow for video generation, and Gemini Notebook for research support.
An AI assistant that works as one with Google services
Gemini's strength is that you can call up AI right inside the Google tools you already use every day. AI assistance in Gmail and Docs, AI Mode in Search, AI video production in Google Flow, and document comprehension in Gemini Notebook all connect together, usable across the board with a single Google account. Higher-tier plans give you access to more capable models and larger context (importing files of up to 1,500 pages).
How to use it
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Sign in with your Google account
Go to gemini.google.com and sign in with your Google account. You can start using it for free.
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Ask a question or make a request
Enter what you want to look up or create. Attaching images and files is also supported.
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Research and generate
Run automated research with Deep Research, or generate images and video (Google Flow).
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Integrate with Google services
Put Gemini to work inside Google tools such as Gmail, Docs, and Search.
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Choose a plan
Depending on your usage and the models you need, upgrade to a paid Google AI plan (Plus / Pro / Ultra).
Features
01Conversation and research
Ask and research in one place.
- Gemini 3.x models — Advanced reasoning and multimodal
- Deep Research — Automatically gathers information and turns it into a report
- Gemini Live / Canvas — Voice conversation and collaborative editing
02Generate
From text to images and video.
- Image generation and editing — Nano Banana and more
- Video generation (Google Flow) — Create cinematic scenes
- Gemini Notebook — Source-grounded research and audio overviews
03Google integration and agents
Inside your usual tools.
- Gmail / Docs / Search — Integrated directly into Google services
- Agent capabilities — Deep Search and agentic development (Antigravity)
- Large context — Import files of up to 1,500 pages
Pricing
It is free to use, and a Google AI subscription raises the limits and models available (amounts shown are monthly prices in Japan, as of August 2026).
| Plan | Monthly | What's included |
|---|---|---|
| Free | ¥0 | Gemini 3.6 Flash and 3.1 Pro (limited), image generation, Deep Research, Live, Canvas, 15GB |
| Google AI Plus | ¥725 | 2x the free limits, video generation, Flow 200 credits, 5x Notebook, 400GB |
| Google AI Pro | ¥2,900 | 4x the limits, Gemini 3 Pro/Deep Search, Flow 1,000 credits, Gmail/Docs integration, 5TB |
| Google AI Ultra | ¥14,500– | 5x (¥14,500) to 20x (¥32,000) the limits, Deep Think, Flow 10,000+, 20TB+ |
Gemini Enterprise is also offered for businesses.
How it differs from other AI assistants
Gemini stands out for being "usable as one with Google's suite of services." Like ChatGPT and Claude, it is a high-performance conversational AI, but its strength lies in integration with its own ecosystem, such as Gmail, Search, and video generation.
| Gemini | ChatGPT | Claude | |
|---|---|---|---|
| Provider | OpenAI | Anthropic | |
| Strengths | Google service integration, video generation, large context | Breadth of features, agents, ecosystem | Writing, code, safety |
| Free tier | Yes (¥0) | Yes (¥0) | Yes ($0) |
If you're choosing based on breadth of features or agents, ChatGPT is a comparison point; if you prioritize writing, code, and safety, Claude is worth comparing.
The information on this page is based on what was published on the official website as of August 2026. Please check the official website for the latest specifications and pricing.
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