Exo: an agent harness that improves itself at runtime, slashing cost and time to SOTA solutions

berkeley_ai · x · 2026-11-06

Alex Krentsel (with Berkeley's Ion Stoica amplifying) introduces Exo, a harness architecture for runtime self-improvement. Instead of hand-tuned or offline-optimized harnesses, Exo evolves the harness alongside the solution inside an agentic loop, reportedly bringing big reductions in the cost and time needed to generate state-of-the-art solutions. Paper linked in thread.

Related event: Berkeley's Exo Lets Agents Self-Improve Their Harness at Runtime(3 posts)→

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