Rivet Agent OS: The In-Process OS That Runs AI Agents 500x Cheaper Than Sandboxes
YC and a16z-backed Rivet built an agent runtime on V8 isolates and WebAssembly that cold-starts in 4.8ms — 92x faster than E2B, at 1/17th the cost. We deeply researched the architecture, the benchmarks, and what it means for every agent framework.
