Infinity: 75,000 paused agents in 8 GB
Infinity: Rust agent runtime from AWS and UC Berkeley (Hydro project), Apache 2.0. One completion per slice, tool calls go HTTP fire-and-forget, between slices the agent is just stored history. Public test bench: 80,000 agents, 99.1 KiB per idle agent, 352 bytes per waiting tokio task.