F5 BIG-IP Advanced Web Application Firewall (Advanced WAF) vs. Arcjet

F5 BIG-IP Advanced Web Application Firewall (Advanced WAF) is built on proven F5 technology to proactively detect and mitigate bots, secure credentials and sensitive data, and defend against application denial-of-service (DoS). Advanced WAF is offered as an appliance, virtual edition, and as a managed service—providing automated WAF services that meet complex deployment and management requirements while protecting your apps with great precision.

Arcjet is runtime security for AI agents. It puts the decision where the action is: block prompt injection, stop PII leaks, block bots, and add guardrails to tools, APIs, and database calls. Identity tells you who is asking, but it cannot tell you what happens next. Arcjet runs inside the code that takes the action, so every agent action is observed in the run it belongs to, checked before it executes, and kept as evidence afterwards. Each check returns a decision your code acts on: allow, block, redact, or hold for review.