Anthropic activates ASL-3 safeguards, creating the first operational AI safety framework tied to capability thresholds

Event Summary

Anthropic activated ASL-3 safety protocol in 2025 — the first operational AI safety framework tied to capability thresholds. How frontier labs are building structured safety responses.

Impact Assessment

• Paradigm Shift +2 · Long-term

  First operational AI safety framework tied to concrete capability thresholds. Created a precedent that safety measures should scale with model capabilities. Influenced regulatory frameworks including SB 53 and EU AI Act implementation.

  Affected Groups: AI safety researchers, AI labs, policymakers, regulators

• Risk Creation -1 · Medium-term

  Critics argued thresholds were self-defined and self-enforced, lacking independent oversight. Raised questions about whether AI labs could credibly self-regulate capability thresholds.

  Affected Groups: public, ethicists, regulators

Consensus & Sources

• 1
  Responsible Scaling Policy Version 3.0 — Anthropic

  URL: https://www.anthropic.com/news/responsible-scaling-policy-v3

  We activated ASL-3 safeguards for relevant models in May 2025 and have been working to improve them ever since.

  Reference Evidence Citation logged Live source