F5 Labs announced the launch of the Comprehensive AI Security Index (CASI) and Agentic Resistance Score (ARS) leaderboards, a set of monthly‑updated benchmarks that measure how AI models withstand simple and adaptive attacks. The new resources give enterprises a standardized way to compare the security performance of popular models before deployment.
The launch builds on F5’s acquisition of CalypsoAI, which was completed on September 11, 2025 for $180 million. By integrating CalypsoAI’s vulnerability library into its Application Delivery and Security Platform (ADSP), F5 Labs can now pair CASI and ARS with its existing AI Guardrails and AI Red Team services, creating a comprehensive AI‑security stack that spans model development, runtime protection, and governance.
"Deploying unverified AI models into critical infrastructure is not innovation; it is negligence. Organizations need a way to continuously quantify resilience. F5 Labs AI Leaderboards offer that standard. These rankings isolate specific weaknesses in the model layer, giving security teams the intelligence they need to govern inference and block attacks before they happen," said Kunal Anand, Chief Product Officer at F5.
The introduction of these leaderboards is a tangible step toward strengthening F5’s hybrid multi‑cloud moat and could drive additional subscription revenue as customers seek to validate AI models before scaling them in production. By providing a clear, data‑driven assessment of AI model security, F5 positions itself to capture demand from organizations rapidly adopting AI workloads while needing robust risk management.
The launch follows a period of strong financial performance for F5, which reported a 5‑to‑6 % revenue growth outlook for 2026 and a 37 % year‑over‑year increase in its Systems segment. The new AI security tools complement this momentum, reinforcing F5’s strategy to expand its AI‑security offerings and deepen its presence in hybrid multi‑cloud environments.
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