Agent loops generate new reasoning each run. State machines execute the same trace every time. For regulated AI, only one of those is auditable.

Check more stories related to machine-learning at: https://hackernoon.com/c/machine-learning.

You can also check exclusive content about #ai-agents, #llm-ops, #ai-governance, #enterprise-ai, #machine-learning, #regulated-ai-deployment, #orchestration, #software-engineering, and more.

This story was written by: @karansehgal1997. Learn more about this writer by checking @karansehgal1997's about page,

and for more stories, please visit hackernoon.com.

LLM agent loops are non-deterministic by design — re-running the same input produces a different reasoning trace, which means you can describe what the system did but never prove it. Q-MDP state machines give regulated deployments bounded execution depth, persistent state traces written at every transition, and governance confidence gates before terminal output. The architectural comparison, with concrete engineering tradeoffs.