LLM router · cost-aware model selection · guarded escalation
Route easy work cheaply. Escalate uncertain work safely.
Entroly RAVS is a reasoning-control and model-routing subsystem with instrumentation, cheap verified execution paths, guarded routing, sequential budget control, uncertainty signals and escalation.
What is inside the routing stack?
Guarded Router
Heuristic and learned policies operate behind explicit gate/risk status rather than unrestricted model switching.
Sequential Controller
Budget-bounded execution can escalate when intermediate evidence or confidence is insufficient.
Verified cheap paths
Structured subproblems can use deterministic or cheaper executors such as symbolic, AST, retrieval or test-running paths when applicable.
Uncertainty control
The stack includes Fisher/Rényi-style uncertainty signals, Lyapunov threshold control, entropy-production risk and spectral consistency signals.
Outcome learning
Append-only outcome evidence and verified transitions support bounded policy improvement from observed results.
Fail-closed behavior
When the router cannot justify the cheap path, the product contract favors escalation to the stronger path rather than gambling.