Build your first working tool with an AI agent in 5 minutes
Without a single line of code: the agent writes, runs, and shows the result itself
- 1.Download the installer for your OS from the official page. For macOS choose .dmg (Apple Silicon or Intel), for Windows - .exe (x64 or ARM64), for Linux - .tar.gz.
Make sure you have a Google account to sign in. If Antigravity is unavailable in your region, use the downloaded installer; signing in may require a VPN.
Google Antigravity ↗About this tool - 2.Run the installer and follow the instructions. After installation, open the app and sign in via your browser - click «Open Application» in the dialog.
The first launch may take a few seconds. Signing in is required even on the free plan.
About this tool - 3.In the left panel, click «Projects» -> «Open Folder» and select or create a new empty folder for your project. You can name the project later.
This folder becomes the agent's workspace - it will see all files inside.
About this tool - 4.In the chat window, click «New Conversation», select «Planning» mode and the default model (Gemini 3.5 Flash). Copy the prompt below, replacing [your_city] with your city:
The «Planning» mode lets the agent plan the steps and ask for confirmation - safe for beginners.
About this toolPromptCreate a simple HTML page that displays the current weather in [your_city] using a free public API (like wttr.in). The page should show temperature, humidity, and wind speed. Style it with a clean, modern design. Place all files in the current project folder.
What this prompt doesThis prompt is in English, but Antigravity understands it and will create the page. Replace [your_city] with your city name in Latin characters (e.g., Moscow). - 5.Send the prompt. The agent will first show a plan: file structure, API to use, steps. Confirm the plan by clicking «Proceed». The agent will create HTML, CSS, JavaScript and open the result in your browser.
If something goes wrong, refine the prompt in natural language - the agent will fix the code itself.
About this tool
💰 What it costs to followprices as of 2026-08
- freeGoogle Antigravity (Chrome Extension + Gemini 3.0 Pro)The extension and the Gemini 3.0 Pro model are currently in public preview - free, no card required.
- freeHermes Agent OSFully free open-source agent. Covers 300+ models via a Nous subscription (has a free tier), but you don't need to pay for local use.
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