Jcode is a high-performance coding-agent harness that makes it possible for developers to scale up multi-agent/swarm workflows. It's built from the ground up with a different architecture to solve the memory bottleneck (it's 20x more memory efficient than Claude Code) that has kept agent swarms from going mainstream. It has 20K GitHub stars, and throughputs $1mil per month of inference spend.
The company was founded by Jeremy Huang. It is part of YC Summer 2026. It is based in San Francisco, CA, USA.