Google AI Studio
Free browser-based tool from Google for prototyping, prompt testing, and building with Gemini models.
About
Google AI Studio is a free web platform where developers can write and test prompts across text, image, video, and audio inputs using Google's Gemini model family. It generates API keys for direct integration, supports one-click deployment to Cloud Run, and connects with Firebase and Google Workspace services. Recent updates added Android vibe coding with Kotlin support and a dedicated mobile app. The interface itself is free; API calls beyond the free tier are billed per token through the Gemini Developer API.