---
title: "Optimal stopping: spending evaluation compute where it counts | AISI Work"
type: signal
url: https://frontiernewswire.com/s/optimal-stopping-spending-evaluation-compute-where-it-counts-aisi-work-5cf5c1c6
published: 2026-08-27T00:00:00.000Z
byline: "Source: AISI"
---

# Optimal stopping: spending evaluation compute where it counts \| AISI Work

Source: AISI · Published 2026-08-27 · Canonical: https://frontiernewswire.com/s/optimal-stopping-spending-evaluation-compute-where-it-counts-aisi-work-5cf5c1c6

We introduce optstop, an open-source tool for LLM evaluations that keeps running where uncertainty is high, and stops where estimates are precise or stable enough.

In this story: [UK AI Security Institute](https://frontiernewswire.com/companies/uk-ai-security-institute)

## Sources

- [Read the original at AISI](https://www.aisi.gov.uk/blog/optimal-stopping-spending-evaluation-compute-where-it-counts)

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