---
title: "AI Safety Level (ASL)"
description: "Anthropic's name for tiers of safeguards in its Responsible Scaling Policy."
canonical: https://aigovernanceengineer.com/glossary/ai-safety-level-asl
author: "Jorge García Aibar"
license: "CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)"
doi: https://doi.org/10.5281/zenodo.22956197
version: "0.5.0"
updated: 2026-09-30
---

# AI Safety Level (ASL)

Anthropic's name for tiers of safeguards in its Responsible Scaling Policy. In version 3.4 the policy keeps ASLs only to describe the protections in place today, and sets its requirements through a table of capability thresholds instead [1].

- Developed in: [the frontier safety frameworks crosswalk](https://aigovernanceengineer.com/resources/frontier-safety-crosswalk#topic-thresholds)
- Chapters: [ch. 10, Reading List](https://aigovernanceengineer.com/bok/reading-list)
- In the glossary chapter: https://aigovernanceengineer.com/bok/glossary#t-ai-safety-level-asl

## Sources

[1] Responsible Scaling Policy, Version 3.4 (effective 2026-07-08; capability-threshold table, Risk Reports, Appendix B on AI Safety Levels). Anthropic. 2026-07-08. https://www-cdn.anthropic.com/files/4zrzovbb/website/0bacdc8440ea96e62a8766d99ebe1d4eea6d5f3a.pdf (verified: primary)