Multiplayer AI. Realtime environment where people & AI work together. Shared browsers, apps and persistent memory. Already powered 250M+ minutes of interactions

San Francisco, CA
Joined November 2023
Goodbye, AI in a chat box. Hello, AI in the room — with everyone. Meet @SpacebarAI: A real-time environment where humans and AI work together. Your whole team works with the same AI coworker, in the same workspace. Everyone directs it. Everyone sees the work happen live. AI hears the conversation. Sees the workspace. Understands what you’re pointing at. Talks with you over voice and video. Works across browsers, whiteboards and applications. Remembers what happened. And when you leave, it keeps working. Every space has an email address. Send it the next task from wherever you are. Synchronous or asynchronous. Same space. Same context. Same tools. Same work. This is Multiplayer AI. In this video, a café owner and a consultant work alongside Sparky (AI agent) to find a location, update a shared spreadsheet, build an app, create designs and a 3D model, check live sales data, and launch a website. When they bring in Stripe, Sparky works with it in front of everyone. Close the browser, and its access ends. The next frontier is not another chat box where one person talks to one model. The next frontier is AI that steps into the work itself — collaborating with entire teams, sharing their context, using their tools, and moving work forward with them. The models are ready. The environment around them needed to catch up, until now. We first built the best place for humans to work together: @PencilSpaces. We started in education, an extraordinary proving ground. Over five years, the technology behind Pencil Spaces has powered more than 260 million minutes of human collaboration. That's almost 500 years of real use. Not 500 years of pristine demo conditions. Low-end devices. Unreliable internet. Different browsers, operating systems, countries and continents. A dropped connection couldn’t cost anyone their work. Simultaneous edits couldn’t break the workspace. Coming back tomorrow couldn’t mean starting over. Everything had to just work. That foundation turns out to fit AI remarkably well. There is a lot of hard tech underneath what you’re watching: → Real-time multiplayer state and CRDTs → Shared browsers and secure browser handoff → Applications and virtual machines → Real-time voice, video and computer vision → Agent orchestration, memory and permissions → Persistent spaces, whiteboards and infinite canvas Each of these is a massive challenge on its own. We've solved for all of them to work simultaneously. And we designed Spacebar to be model-agnostic. Bring the models you want. Bring the tools you want. Bring the people you want. Spacebar gives them a place to work together. We built this infrastructure for humans first. And now AI is invited into the room as well. This is Spacebar. Join the waitlist: spacebar.ai/waitlist #MultiplayerAI #FrontierAI #FutureOfWork #Spacebar
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The next era of AI is multiplayer. Meet Spacebar: a shared, real-time environment where people and AI agents see, hear, speak, remember and act together. Same room. Same tools. Same rules. Give your AI a place to work. spacebar.ai
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