CalypsoAI

CalypsoAI is an enterprise AI security platform that protects AI models, applications, and agents at the inference layer, the live moment when a model takes input and produces output. The company was founded in 2018 and began with national security work in Dublin and Washington before expanding into the commercial market. In September 2025 it was acquired by F5, the application delivery and security vendor, for $180 million, and its technology is being folded into the F5 Application Delivery and Security Platform under the F5 AI Guardrails name while keeping its model agnostic, vendor neutral approach.

The platform is organized as an inference perimeter built from three modules. Inference Red Team runs autonomous adversarial testing, firing thousands of attack prompts at a system to surface prompt injection, jailbreaks, and bias, and generates more than 10,000 fresh attack patterns each month to produce a risk score. Inference Defend applies real time guardrails and scanners that block prompt injection, sensitive data leakage, and policy violations as they happen. Inference Observe gives security teams centralized visibility, policy control, and audit logs across their whole AI estate.

Because protection sits at the inference layer rather than inside any one model, the same controls apply across providers, clouds, and environments, which matters to buyers who do not want to be locked to a single AI vendor. A process the company calls MutAIt lets defenses adapt as new attacks appear, rather than relying on static rules. The platform exposes a model agnostic API and connects natively to SIEM and SOAR tools, along with ticketing, identity, and notification systems, so AI specific threats show up in the same workflows security teams already run.

CalypsoAI is used by Fortune 500 organizations in financial services, consumer goods, critical infrastructure, and healthcare, and its centralized observability and audit trails are aimed at GDPR and EU AI Act obligations. It deploys as SaaS, on premises, or hybrid. Pricing is subscription based and sold through sales, scaled by inference volume, data processed, and the modules a customer turns on, with no public price list. Following the F5 acquisition, the capability is increasingly delivered as part of F5 AI Guardrails.