[Linkpost] “Petri: An open-source auditing tool to accelerate AI safety research” by Sam Marks

This is a link post.

This is a cross-post of some recent Anthropic research on building auditing agents.[1] The following is quoted from the Alignment Science blog post.

tl;dr

We're releasing Petri (Parallel Exploration Tool for Risky Interactions), an open-source framework for automated auditing that uses AI agents to test the behaviors of target models across diverse scenarios. When applied to 14 frontier models with 111 seed instructions, Petri successfully elicited a broad set of misaligned behaviors including autonomous deception, oversight subversion, whistleblowing, and cooperation with human misuse. The tool is available now at github.com/safety-research/petri.

Introduction

AI models are becoming more capable and are being deployed with wide-ranging affordances across more domains, increasing the surface area where misaligned behaviors might emerge. The sheer volume and complexity of potential behaviors far exceeds what researchers can manually test, making it increasingly difficult to properly audit each model.

Over the past year, we've [...]

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Outline:

(00:24) tl;dr

(00:56) Introduction

The original text contained 1 footnote which was omitted from this narration.

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First published:
October 7th, 2025

Source:
https://www.lesswrong.com/posts/kffbZGa2yYhc6cakc/petri-an-open-source-auditing-tool-to-accelerate-ai-safety

Linkpost URL:
https://alignment.anthropic.com/2025/petri/

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Narrated by TYPE III AUDIO.

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