Perplexity’s AI agents keep working after you close the tab

Perplexity’s new Teammates can coordinate multiple agents, remember where previous sessions left off, and keep working without another prompt. The challenge is keeping everything in sync, especially when agents are working at the same time, sharing project state, and operating with different permissions.

Announced Wednesday, Teammates builds on infrastructure Perplexity has spent much of the year developing. The launch puts that earlier work to use in workflows where agents can delegate tasks and continue operating across sessions.

The challenge of keeping agents stateful

When Nate Kupp, Perplexity’s vice president of infrastructure, took The New Stack inside the company’s agent sandboxes, he described the difficulty of maintaining reliable systems at that scale.

“Stateful systems are incredibly hard to build,” Kupp said, pointing to the durability and uptime requirements of operating millions of sandboxes.

“Stateful systems are incredibly hard to build”

Teammates relies on Perplexity Computer’s existing infrastructure, which separates persistent project state from individual execution environments. That allows agents to continue working on the same project without depending on a single uninterrupted session.

Shared state lives in Git

In a technical breakdown of its shared workspaces, the company described how it uses Git-backed repositories to keep project state intact across sessions. Each Computer project has its own…