Fabraix

Fabraix tests AI agents by attacking them before users do. The adversarial verification platform finds security and logic gaps in agents and multi-agent systems, and it was built by ex-Meta engineers.

Its staging environment, called Nyx, runs over 1,000 automated strategies against your agent across security, logic and alignment.

The approach is pure blackbox, so you do not need to expose the agent's internals.

Fabraix adapts to how the agent behaves as it goes, which is how it surfaces reasoning gaps, prompt injections and reward hacking.

It covers text, voice and browser-based interactions, so agents that act on web pages are in scope too.

For teams shipping agents regularly, the CI/CD integration matters most.

Fabraix can run as part of your pipeline, giving you continuous safety coverage instead of a one-off audit before launch.

It is a tool for developers, not a general chatbot.