Welcome to Fabraix
Fabraix is an AI research lab focused on pushing the offensive AI frontier. We believe the path to safe superintelligence runs through offensive AI. Every exploit our systems surface is threat intelligence the field didn’t have yesterday. Everything we ship is grounded in original work on adversarial robustness, multi-turn exploit discovery, and threat-cost economics. The products documented here are the operational layer of that research.Products
Nyx
Our offensive AI agent. Nyx probes your systems autonomously: multi-turn, pure blackbox, adapting in real time. Point it at a target, set a budget, get a report.
Arx
Run-time defence informed by what Nyx finds. Register agent sessions, log events, and check actions in context to block prompt injection, goal deviation, and memory poisoning.
Why Fabraix?
Offensive-First
You can’t verify what you haven’t tried to break. Nyx attacks your system the way a real attacker would.
Adversarial Coverage
Thousands of adversarial strategies running concurrently - coverage scales with compute, not with how many humans you can hire.
Run-time Reliability
Contextual checks built on offensive findings - block prompt injection, goal deviation, and memory poisoning at runtime.
Research-Backed
Original research like ACE (Adversarial Cost to Exploit) - translating AI security from pass/fail outcomes into deployable economics.
Quick Links
Quickstart
Run your first adversarial scan or instrument an agent in 5 minutes
Nyx API
Adversarial security audits
Arx API
Run-time defence endpoints
Research
ACE, Playground, and the rest of our published work