Sub-millisecond VM sandboxes for AI agents via copy-on-write forking Try it curl -X POST https://api.zeroboot.dev/v1/exec \ -H 'Content-Type: application/json' \ -H 'Authorization: Bearer zb_demo_hn2026' \ -d '{"code":"import numpy as np; print(np.random.rand(3))"}' Benchmarks Metric Zeroboot E2B microsandbox Daytona Spawn latency p50 0.79ms ~150ms ~200ms ~27ms Spawn latency p99 1.74ms ~300ms ~400ms ~90ms Memory per sandbox ~265KB ~128MB ~50MB ~50MB Fork + exec (Python) ~8ms - - - 1000 concurren...