Guardia vs. Arcjet

Guardia is an AI security solution designed to protect organizations from risks introduced by employee use of AI tools like ChatGPT, copilots, and browser-based assistants. It provides real-time monitoring and control over AI interactions to prevent sensitive data leaks, prompt injection attacks, and unsafe outputs. Guardia enforces security policies across employee workflows, ensuring compliance while enabling safe AI adoption.

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.