Perplexity explains how SPACE maintains execution identity across sandbox lifecycle changes

What happened

Aravind Srinivas shared a write-up on how Perplexity’s sandbox platform handles millions of executions a day while using multiple machines to lower serving costs. In the quoted post, @perplexity_ai says SPACE has an error rate below 0.0002% and uses cryptographic identity to keep requests tied to the right execution as sandboxes pause, resume, and move.

Reported by 2 sources

The story so far

Perplexity has open-sourced SPACE, the sandbox platform it says runs every task in Perplexity Computer, making it available on GitHub under the Apache 2.0 license. The company said SPACE gives each agent task its own Firecracker microVM and controls credentials and outbound traffic from outside that VM. Perplexity said SPACE uses cryptographic identity to keep requests tied to the correct execution as sandboxes pause, resume, and move. The company reported that the platform handles millions of executions a day with an error rate below 0.0002%. Aravind Srinivas said SPACE serves Perplexity’s daily traffic and uses multiple machines to lower serving costs.

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