Patronus AI alternatives

1. Cranium AI

End-to-end AI security and governance platform to discover, monitor, red-team and prove enterprise AI

Best for: Enterprises that need to secure, red-team, and prove governance across internal and third-party AI in one platform

Frameworks: EU AI Act, NIST AI RMF, ISO/IEC 42001

2. Giskard

Open-source and enterprise platform for testing and red-teaming LLM agents

Best for: ML, quality, and risk teams wanting open-source-first, framework-aligned LLM testing and continuous red teaming

Frameworks: EU AI Act, NIST AI RMF

3. Protect AI

End-to-end security for the AI and machine-learning supply chain

Best for: Security and ML teams needing to scan and defend models, pipelines, and LLM apps across the AI lifecycle

Frameworks: NIST AI RMF, SOC 2

4. Robust Intelligence

AI Firewall and automated model validation to secure AI from build to production

Best for: Enterprise security and ML risk teams wanting adversarial testing plus runtime protection mapped to AI-security standards

Frameworks: NIST AI RMF

5. Mindgard

Continuous automated AI red teaming and security testing for enterprise AI systems

Best for: Enterprise security teams needing continuous, attacker-perspective red teaming and testing of LLMs and AI systems

Frameworks: SOC 2

6. Promptfoo

Open-source tool for evaluating and red-teaming LLM apps, agents, and RAG systems

Best for: Developer teams wanting free, open-source, CI/CD-integrated evaluation and red teaming of LLM apps

7. Adversa AI

Continuous AI red teaming for agents, LLMs, and generative AI applications

Best for: Organizations needing specialist, research-driven adversarial testing of LLMs and AI agents

8. Vijil

Trust infrastructure to make enterprise AI agents secure, reliable, and resilient

Best for: Teams building enterprise AI agents that need lifecycle testing, hardening, and trust evidence