sandbox

SuperServe's landing page makes four promises; The Deep Feed drove the live API 356 ways across 24 test phases — booting every template, running nine agent runtimes, executing a multi-agent swarm — to map the gap between the spec sheet and the substrate.

Modal raised $355M at $4.65B selling AI agents a computer, as do 22 other companies; this map of the sandbox race shows who runs Firecracker, who doesn't, and why the substrate war is nearly settled while everything above it is wide open.