---
title: "AISI: what it means · The AI Compute Race · DRYBURGH"
source: https://dryburgh.com/vol1/glossary/aisi
description: "AISI: The UK's AI Security Institute, which measures how long a cyber task a frontier model can complete."
---

# AISI

What does “AISI” mean?

AISIThe UK’s AI Security Institute, which measures how long a cyber task a frontier model can complete. Row 4 of the Scorecard reads how fast that length doubles. *Chapter 8; the Scorecard.*

From *The AI Compute Race*. [Read the book](https://dryburgh.com/vol1#buy)

## Where the book uses it

- [Chapter 8 — The Arsenal Behind Every Arsenal](https://dryburgh.com/vol1/notes/chapter-8)The state as customer: how the Pentagon buys frontier AI, the contract clauses a laboratory fought over, and what the courts said about a company that would not sign.

## Where the record uses it

- Scorecard indicator [UK AI Security Institute (AISI) 80%-success cyber horizon doubling](https://dryburgh.com/vol1/scorecard#row-4)

## Sources that use it

- Nikola Jurkovic, Tim Hua and Beth Barnes, METR, review of the “Misalignment in high-stakes settings” section of Anthropic’s Risk Report of August 2026, 20 October 2026 (the review of an evaluator six of whose employees Anthropic had onboarded by 15 October 2026; its authors were “engaged prior to” Anthropic’s post of 15 October and “did not have the level of access to information described in that post”; “We expect future engagements to be governed by different terms.”; “Anthropic had the right to veto publication of this review and to redact any part of it.”; “No redactions were made to our review and we did not change any of our conclusions during the publication review process.”; a draft of the report Anthropic shared on 24 July 2026 “assessed the risk as” “very low”; Anthropic “revised the assessment to” “low” after “a group of incidents involving covered models came to light”; of those incidents, “especially those observed by UK AISI”). [In the Sources](https://dryburgh.com/vol1/sources/research#metr-anthropic-review-oct26)

## Related terms

- [Frontier](https://dryburgh.com/vol1/glossary/frontier)
- [Amici](https://dryburgh.com/vol1/glossary/amici)
- [Arsenal behind every arsenal](https://dryburgh.com/vol1/glossary/arsenal-behind-every-arsenal)
- [CHIPS Act](https://dryburgh.com/vol1/glossary/chips-act)
- [Defense Production Act](https://dryburgh.com/vol1/glossary/defense-production-act)
- [Fable](https://dryburgh.com/vol1/glossary/fable)
- [Jailbreak](https://dryburgh.com/vol1/glossary/jailbreak)
- [Mission layer](https://dryburgh.com/vol1/glossary/mission-layer)
- [Mythos](https://dryburgh.com/vol1/glossary/mythos)
- [Red line](https://dryburgh.com/vol1/glossary/red-line)

From the glossary of The AI Compute Race.

- [Campuses](https://dryburgh.com/vol1/ledger)
- [Tests](https://dryburgh.com/vol1/tests)
- [Scorecard](https://dryburgh.com/vol1/scorecard)
- [Data](https://dryburgh.com/vol1/data/releases)
- [Chapter by chapter](https://dryburgh.com/vol1/companion)
- [The record at a glance](https://dryburgh.com/vol1/observatory)
- [The machine](https://dryburgh.com/vol1/machine)
- [One campus, four futures](https://dryburgh.com/vol1/hyperion)
- [Glossary](https://dryburgh.com/vol1/glossary)
- [People](https://dryburgh.com/vol1/people)
- [Sources](https://dryburgh.com/vol1/sources)
- [Notes](https://dryburgh.com/vol1/notes)
- [Where the book was wrong](https://dryburgh.com/vol1/corrections)
- [Where its sources were wrong](https://dryburgh.com/corrections?book=vol1)
- [The Paper](https://dryburgh.com/vol1/paper)
- [Consent](https://dryburgh.com/vol1/consent)
- [Who builds and pays](https://dryburgh.com/vol1/parties)

*The AI Compute Race: Five Races, One Machine* is a book by Lee S. Dryburgh, the first volume of THE COMPUTE ECONOMY, published by Dryburgh, an imprint of Contestra OÜ, Tallinn, Estonia; its record closes on 8 November 2026.

[About the book](https://dryburgh.com/vol1)[Tell me when it is out](https://dryburgh.com/vol1#notify)