Patronus AI vs Robust Intelligence

Patronus AI provides an automated platform for evaluating and securing large language models (LLMs), enabling enterprise teams to score performance, generate adversarial test cases, benchmark models, detect hallucinations, PII leakage, and other failure modes across 50+ categories. Key differentiators include proprietary evaluator models like Lynx for hallucination detection outperforming GPT-4o, domain-specific benchmarks such as FinanceBench and EnterprisePII, and agent tracing for 15 error modes. Typical buyers are AI engineers and enterprises like Etsy, Pearson, AngelList in saas-technology and financial-services deploying production AI systems. Raised $20M total funding, with $17M Series A in 2024.

Robust Intelligence was a San Francisco-based AI security company co-founded in 2019 by Harvard computer science professor Yaron Singer and Kojin Oshiba. The company pioneered the concept of an 'AI Firewall' — a purpose-built platform that validates, stress-tests, and protects AI models from development through production. Key capabilities included algorithmic red teaming, automated model assessment, and proactive AI risk mitigation aligned to OWASP and MITRE ATLAS standards. Robust Intelligence was acquired by Cisco in October 2024 for a reported $400M and has been foundational to the development of Cisco AI Defense and Cisco Foundation AI. Its technology is now integrated into the Cisco Security Cloud, providing threat protection against prompt injection, data poisoning, jailbreaking, and unintentional model outcomes. The company raised $44M prior to acquisition across three rounds.