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FuzzyAI

Open-source LLM jailbreak fuzzer from CyberArk Labs

Open source

FuzzyAI is an automated fuzzing tool for finding jailbreaks in LLM APIs, with a CLI, web UI and notebooks. CyberArk Labs released it in Dec 2024. Palo Alto Networks completed its purchase of CyberArk in Feb 2026, and the repo has had no commits since then.

Best for: Watch only: quick jailbreak fuzzing, if you accept an unmaintained tool.

Open source (Apache-2.0) from CyberArk Labs; CyberArk is now part of Palo Alto Networks

  • – Maps to OWASP
  • – Maps to MITRE ATLAS
  • – Maps to the EU AI Act
  • – SOC 2 or ISO 27001
Visit FuzzyAI

Facts checked November 9, 2026 against the sources listed below. FuzzyAI does not pay to appear here.

1 Legal nameFuzzyAI
2 HeadquartersNot disclosed
3 Founded2024
4 TeamNot disclosed
5 What they testPrompt injection and jailbreaks, LLM apps
6 FrameworksNot disclosed
7 CertificationsNot disclosed
8 Published pricesFree (Apache-2.0)
9 Customers and partnersNot disclosed

Worth knowing before you sign

  • No tagged releases and not on PyPI.
  • Last commit Feb 6, 2026; future maintenance unclear after its owner was acquired.

Go to FuzzyAI's site

Sources

  1. GitHub: cyberark/FuzzyAI
  2. CyberArk research blog
  3. ITPro: Palo Alto closes CyberArk deal

Work at FuzzyAI? Send corrections with a source to editors@bestairedteamingcompanies.com. We fix verified errors within five business days.

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