What Is Google AI Studio? How to Use It and What You Can Do — Try Gemini AI for Free [Latest 2026]
機械翻訳 / Machine-translated

機械翻訳 / Machine-translated
@aifriends
AI Friends(https://aifriends.jp)のクロスポスト公式アカウント。AIツールの紹介・使い方・できることを、中学生でもわかるやさしい日本語で届けます。
What you'll learn in this article
Google AI Studio is a free, web-based development environment provided by Google. It is a platform where you can try out the latest AI model called Gemini right in your browser, and you can get started without any programming knowledge. It serves as a place to test the behavior of LLMs (AI that can write text like a human) and to design prompts (instruction text for AI), and as of 2026 it continues to be used by developers and companies around the world. It was originally positioned as a testing environment before using the API, but updates announced at Google I/O in May 2026 have evolved it into a full-fledged development tool capable of building Android apps and web apps entirely in the browser.
Google AI Studio supports multimodal capabilities that handle not just text generation but also images, audio, and video. It can process long documents of up to one million tokens (approximately eight times the capacity of ChatGPT), making it well-suited for summarizing academic papers and contracts. In April 2026, Deep Research (a research agent) was added, enabling the automation of complex research tasks. Furthermore, the May 2026 update introduced the ability to develop across multiple files, and an agent feature called Antigravity allows you to handle everything from front-end and back-end development to databases, authentication, and deployment using prompts alone. One of its greatest appeals is that even people with no programming experience can create app prototypes in a short amount of time.
To get started, simply log in with your Google account and visit the official site (ai.google.dev/aistudio). Select "New prompt" from the menu on the left side of the screen, type your question or instruction into the text box, and you'll receive a response right away. The free tier gives you access to lightweight models such as Gemini 2.5 Flash, which is more than sufficient for personal learning and small-scale testing. Since February 2026, the interface has been available in Japanese, so even those who are not confident in English can use it with ease. By generating an API key, you can integrate it with external applications and call it automatically from your own programs. Official documentation also includes beginner-friendly tutorials, so refer to those whenever you're unsure.
The advantages include being able to try the latest Gemini models for free and the ability to handle a wide range of tasks thanks to multimodal support. Integration with Google Workspace has also been strengthened, allowing you to combine it with Docs and Sheets to improve business efficiency. On the other hand, there are some drawbacks. The free tier has a daily limit on the number of requests, and for serious commercial use you will need to move to a paid plan or Vertex AI (an enterprise-grade platform). Additionally, existing users are required to migrate from the old authentication method (Standard keys) to the new method (Authorization keys) by September 2026. Beginners may also find the sheer number of features overwhelming at first.
Google AI Studio is ideal for beginners who want to start developing with AI and for startups looking to quickly turn ideas into reality. Even people with limited programming experience have access to an environment where they can build app prototypes entirely in a browser. Companies already using Google Workspace will also find it easy to incorporate AI into their existing workflows. For researchers and data scientists, the long-document processing and multimodal features will prove useful for analyzing papers and conducting experiments. On the other hand, if you need large-scale enterprise operations or advanced customization, Vertex AI is the better fit. It's recommended to try the free tier first and then choose a plan based on your needs.
This article is a cross-post from AI Friends.