Google’s New AI Built an Entire Operating System from Scratch in 12 Hours!

Added: 2026-05-25

[00:00:00]Of course, we are bringing it today to developers in anti-gravity. Varun is going to share more.

[00:00:13]It's truly an amazing time to be a builder. We move beyond AI tools that help us write to agents that help us act. These agents have lowered the barrier to development so much that anyone can be a builder, even busy CEOs.

[00:00:28]In fact, Sundur used Google Anti-gravity last week to fix a bug in the Google codebase.

[00:00:35]When we launched the anti-gravity ID in November, we made sure to nail the core agent-powered ID experience and added an experimental first of its kind agent for surface as a glimpse of where we were heading. Millions of you already actively use anti-gravity, and so we're excited to bring you even more today.

[00:00:54]We've seen the diversity of tasks, preferences, and frankly product feedback. We've taken all of these learnings and now anti-gravity is massively expanding its suite of agentic capabilities, surfaces, integrations, and product features.

[00:01:11]To start, we're launching a full CLI experience, an anti-gravity SDK, native voice support with Gemini audio models, and integrations with many services and platforms like Android, Firebase, and Google AI Studio.

[00:01:34]All of this is available for you to try today.

[00:01:37]But most importantly, at the core is anti-gravity 2.0, a new standalone desktop application that delivers fully on that original glimpse of a truly agent optimized experience.

[00:01:50]The new anti-gravity is unabashedly agent first, focusing on the core agent conversations, agent produced artifacts, and multi-agent orchestration. Like I said, unabashedly agent first.

[00:02:04]As Sundra mentioned, this is the exact experience teams here at Google have been using to drive massive value.

[00:02:11]The anti-gravity agent harness, the invisible framework for Gemini to perform real world tasks, has become much more powerful with new core primitives such as sub agents, hooks, and asynchronous task management.

[00:02:24]And underpinning all of this are the Gemini models with Gemini 3.5 Flash having been co-optimized with the anti-gravity harness. Of course, being engineers, we were curious to see how far we could push the limits of what was possible with these agents and models.

[00:02:42]So, using the new anti-gravity and Gemini 3.5 Flash, we asked our agents to take on what we consider to be a highly complex and impressive task. Build a working operating system from scratch.

[00:02:55]We were surprised by what we found.

[00:02:57]Asynchronously, anti-gravity broke down the challenge into a cohesive plan, tackled tasks via parallel sub aents generated, executed, and iterated over its very own tests.

[00:03:09]Over 12 hours, 93 sub aents working in parallel made over 15,000 model requests and processed 2.6 billion tokens to take an initially empty project to the core of a functioning operating system.

[00:03:24]This was not possible.

[00:03:33]This was not possible on Gemini 3.1 Pro.

[00:03:36]But thanks to the performance and cost efficiency of Gemini 3.5 Flash, building an entirely functional operating system consumed less than $1,000 of API credits.

[00:03:55]The anti-gravity agents wrote every line of code from the scheduler to the memory management to the file system generated, audited, and tested entirely by an autonomous team of agents. To put this in context, developing an OS from scratch is both notoriously brutal and can take many months to build. We weren't just building an application, but a fully functioning operating system that applications can run on. Let's take this live and actually show this operating system in action.

[00:04:26]So, here I'm actually in a terminal window in the OS that anti-gravity built. Now, it's not super easy to demo a working operating system. So, let's try something fun to see if it works.

[00:04:35]One interesting utility that you can install is SL, a common typo for LS.

[00:04:41]Without spoiling it, here it goes.

[00:04:45]It works.

[00:04:47]You could see a cool locomotive passing through the screen with the anti-gravity logo on it. But clearly, this isn't a real OS. Unless I can play Doom.

[00:05:00]Now, if I try running Doom right now, it just doesn't work. Turns out that the OS is currently missing some necessary video and keyboard drivers. So, let's just try and fix it in the new anti-gravity.

[00:05:12]I have a prompt prepared and I'm going to paste it in.

[00:05:17]While it's running, let's take a tour of anti-gravity 2.0. As you can see, anti-gravity 2.0 is very much agent first with all of your conversations on the left side panel and all of your projects. Let's take a peek at one of the conversations that I previously had.

[00:05:32]I was curious for this demo about some fun facts about Doom. So, I asked the agent to do some research. It generated some plots on the right side panel. And then finally, it also generated a cool artifact for me. It even generated an infographic using Nanoban Pro. It generated some graphs using the code it just wrote. And then afterwards, it generated some cool tables. As you can see, anti-gravity 2.0 is unabashedly agent first and has been optimized to the be the best surface for you to interact with agents.

[00:06:05]Let's take a look at the previous conversation to see how it's going.

[00:06:08]Anti-gravity ended up doing a whole host of research, ended up writing over a 100 lines of code, and then finally built the operating system. Let's take a peek and see if it works. Moment of truth.

[00:06:22]Amazing.

[00:06:31]That never gets old.

[00:06:34]While playing Doom on an operating system that Anti-Gravity built is both fun and impressive, it hasn't stopped there. We've tked these agents to build a photo editing suite, a realtime messaging app, and a multi-user collaboration platform, all with the same results. Multi-day engineering efforts are collapsing into hours, if not minutes. This was made possible by the new sub agent teamwork capability.

[00:06:59]We're excited to bring this to you as an early research preview in anti-gravity.

[00:07:10]Last but not least, 3.5 Flash is incredibly fast. Like Sund said, it's four times faster than other Frontier models. But as we know, agentic coding is a token monster. So we've taken it to another level in anti-gravity. We've optimized Flash to be not just four times, but 12 times faster in anti-gravity.

[00:07:38]And we're thrilled to give you all a taste of this experience starting today.

[00:07:42]What we showed you today isn't just the vision. It's how we're building anti-gravity to be the most complete agentic development platform for everyone. We're doing it with the Google ecosystem. Whether it's integrating tech stacks and tools that you already use or using anti-gravity's agent harness to power the next crop of agentic experiences across Google products today. Anti-gravity 2.0 is available globally for everyone.

[00:08:10]Join us in the developer keynote as we demo all the new capabilities. Back to you.

[00:08:21]Thanks Vun. It's incredible that War Vun's entire OS was built by a team of sub agents in just 12 hours and for such a low cost. What's amazing about Flash is how it delivers frontier level capabilities at less than half the price of comparable Frontier models. We've heard that many companies are already blowing through their annual token budgets and it's only May. If companies used a mix of Flash and other frontier models, they could save a lot of money.

[00:08:48]To put this in perspective, top companies in Google Cloud are processing about 1 trillion tokens a day. If they shifted 80% of their workloads from other frontier models to 3.5 Flash, they'd save over $1 billion annually, that is real savings they can pour back into their company. Gemini 3.5 Flash is available for everyone today across our products and APIs.