Fabraix.

Fabraix — Adversarial Verification for AI Agents

Fabraix delivers autonomous adversarial testing for AI agents through its flagship product, Nyx. Run thousands of AI-powered security probes against your agent in real time, uncovering critical vulnerabilities before deployment without requiring any internal access to your systems.

Product Highlights

• Pure Blackbox Testing: Test any AI system exactly as users interact with it—no API access, code integration, or special permissions required
• Multi-Turn Adaptive Probing: Nyx reasons across conversation turns and dynamically adapts to your agent's responses, finding failures static tests miss
• 1,000+ Adversarial Strategies: Comprehensive coverage across jailbreaks, prompt injections, logic gaps, reasoning failures, and alignment issues
• Multi-Modal Support: Voice, text, images, documents, and browser interactions—testing every surface your agent touches
• Massively Parallel Execution: Thousands of concurrent test strategies scaling with compute, not headcount

Use Cases

• Customer Support Bots: Detect hallucinations, policy drift, and prompt injection in multi-turn conversations
• Coding Agents: Catch unsafe code execution, broken refactors, and runaway tool loops before production
• RL Training Environments: Identify reward hacking and misspecification failures, saving up to 30% in wasted compute
• Financial & Clinical Applications: Stress-test high-stakes agents for compliance gaps, unsafe advice, and PHI leakage
• Multi-Agent Systems: Probe coordination failures and injection propagation across orchestration boundaries

Target Audience

Fabraix serves AI researchers, engineering teams building autonomous agents, and enterprises deploying AI at scale—any organization where agent reliability, security, and alignment directly impact business outcomes or user safety.