Google Antigravity | I/O 2026 Keynote

TL;DR: At I/O 2026, Google announced Antigravity 2.0—an agent-first desktop application and development platform that integrates Gemini 3.5 Flash, can autonomously drive a team of sub-agents to build a complete operating system from scratch in 12 hours, and compresses complex engineering tasks down to a few hours. ## From AI Tools to Agent Platforms “This is truly a great time to be a creator.” From AI tools that help us write to agents that help us act, these agents have dramatically lowered the development bar, enabling anyone—even a busy CEO—to become a creator. In fact, Sundar used Google Antigravity just last week to fix a bug in Google’s codebase. When we released Antigravity ID last November, Google polished the core agent-driven ID experience and added an experimental, industry-first agent interface as a preview of the future direction. Millions of users are already actively using Antigravity, so we’re very excited to bring everyone even more capabilities today. Google saw the diversity of tasks, user preferences, and product feedback, and we absorbed all of it. Now, Antigravity is massively expanding its suite of agent capabilities, interface, integrations, and product features. ## Antigravity 2.0: Unapologetically Agent-First First, Google is launching a full CLI experience and the Antigravity SDK. Native voice support, integrated with the Gemini voice model, and integrations with numerous services and platforms like Android, Firebase, and Google AI Studio. All available for trial today. But most importantly, at the core is Antigravity 2.0—a brand new standalone desktop application that truly realizes the agent-optimized experience previewed earlier. The new Antigravity is unapologetically agent-first, focused on core agent conversations, agent-generated artifacts, and multi-agent orchestration. As Sundar said—this is exactly the experience Google internal teams use to create enormous value. The Antigravity Agent Framework—the invisible framework that lets Gemini perform real-world tasks—has become even more powerful, with new core primitives like sub-agents, hooks, and async task management. ## Framework Upgrades and Gemini 3.5 Flash All of this is built on the Gemini model, with Gemini 3.5 Flash now jointly optimized with the Antigravity framework. As engineers, we were curious how far we could push the possibilities with these agents and models. So, using the new Antigravity and Gemini 3.5 Flash, the team challenged the agents with a task considered extremely complex and impressive: building a working operating system from scratch. ## Stunning Demo: Building an OS Autonomously in 12 Hours The results were surprising. Antigravity asynchronously decomposed the challenge into a coherent plan, processed tasks through parallel sub-agents, generated, executed, and repeatedly iterated on its own tests. In 12 hours, 93 sub-agents worked in parallel, issuing over 15,000 model requests, processing 2.6 billion tokens, turning an initially blank project into a fully functional operating system core. This was previously impossible—it could not be done on Gemini 3.1 Pro. But thanks to the performance and cost efficiency of Gemini 3.5 Flash, building a completely usable operating system consumed less than $1,000 in API credits. The Antigravity agent wrote every line of code: from the scheduler, memory management to the filesystem—all generated, reviewed, and tested by an autonomous agent team. To put this in context: developing an operating system from scratch is notoriously difficult and typically takes months. This is not just building an application; it’s a fully functional operating system on which other applications can run. ## Live Fixing Drivers, Running Doom A live demo of the operating system was shown. On screen was a terminal window of an OS built by Antigravity. To demonstrate it was working, the team tried installing a fun little tool, SL (a common typo of LS). It worked! A cool locomotive with the Antigravity logo rolled across the screen. But obviously it’s not a real operating system unless you can play Doom. Running Doom directly failed—the OS was currently missing some necessary video and keyboard drivers. So the team tried fixing it in the new Antigravity, pasting a prepared prompt. While the fix was running, we took a quick tour of the Antigravity 2.0 interface. As you can see, it’s completely agent-first: all conversations on the left panel, all projects also on the left. Look at a previous conversation: curious about some fun facts about Doom for this demo, the agent generated a chart in the right panel, then finally produced a cool artifact. It even generated an infographic using Nano Banana Pro, a chart with the code just written, and then a cool table. As you can see, Antigravity 2.0 has been optimized to be the best interface for interacting with agents. Back to the fix. Antigravity eventually did a lot of research, wrote over 100 lines of code, and then finally built the operating system. The moment of truth—playing Doom on an operating system built by Antigravity was both fun and impressive. ## More Capabilities: Photo Editor, Messaging App, and More That’s not all. Google also had these agents build a photo editing suite, a real-time messaging app, a multi-user collaboration platform—the results were the same. Engineering work that used to take days was compressed into hours or even minutes. Thanks to the new sub-agent team collaboration capabilities, Google is excited to offer this as an early preview in Antigravity. ## Extreme Performance: 12x Faster Than Frontier Models Last but not least, Gemini 3.5 Flash is incredibly fast. As Sundar said, it’s four times faster than other frontier models. But Google knows agent coding is a token-hungry beast. So we took it to the next level in Antigravity—we optimized Flash, making it not just four times faster in Antigravity, but 12 times faster. Google is thrilled to let everyone experience this starting today. ## Openness and Integration What we showed today is not just a vision, but how we’re building Antigravity into the most complete agent development platform for everyone. Google is doing this together with the Google ecosystem—whether by integrating the tech stacks and tools you already use, or by leveraging Antigravity’s agent framework to power the next wave of agent experiences in Google products. Today, Antigravity 2.0 is available to everyone worldwide. Source: https://www.youtube.com/watch?v=T_fnhr5lVBw