F5 has completed our acquisition of CalypsoAI and is introducing F5 AI Guardrails, touted as a comprehensive runtime security for AI models and agents.
Shawn Wormke, SVP of product management at F5, wrote in a blog that with this new addition, F5 said it can now provide a model-agnostic solution that secures AI data, combats adversarial threats, and ensures responsible AI governance across all interactions.
In an earlier statement, F5 said CalypsoAI’s platform brings real-time threat defense, red teaming at scale, and data security to enterprises racing to deploy generative and agentic AI.
These capabilities will be integrated into the F5 Application Delivery and Security Platform (ADSP) to create the most complete solution for securing AI inference.
The transaction covers F5 will acquire all issued and outstanding shares of CalypsoAI, a private company with major operations in Dublin, Ireland for $180 million in purchase consideration financed primarily with cash
“AI is redefining enterprise architecture—and the attack surface companies must defend,” said François, president and CEO of F5.
“Traditional firewalls and point solutions can’t keep up,” said Locoh-Donou. “The addition of CalypsoAI will give enterprises the confidence to innovate faster and better protect critical data as they rely on F5 to deliver and secure apps, APIs, and AI models across their environment.”
F5 intends to tackle the need for independence from any single AI model or hosting provider with CalypsoAI’s adaptive AI security capabilities that deliver proactive and continuous AI protection regardless of model or cloud.
These include adversarial threat protection. This involves protection against new AI threats like prompt injection and jailbreak attacks with real-time threat management. Proactive red-teaming tests against more than 10,000 new attack prompts each month to produce a risk score.
Another is secure data. Guardrails detect and prevent sensitive data leakage and policy violations at runtime and audit AI interactions across models.
A third is unified visibility and governance. Centralized observability, policy control, and audit logs make it easier to meet GDPR/EU AI Act requirements across SaaS, on-premises, and hybrid environments.
“Enterprises want to move fast with AI while reducing the risk of data leaks, unsafe outputs, or compliance failures,” said Donnchadh Casey, CEO of CalypsoAI. “Our customers rely on us to pressure test AI systems at scale, set inference layer guardrails that adapt as models change, and to gain visibility and auditability across their AI estate.
