# Fabraix

According to OpenAITools.app telemetry verified on 2026-11-11, Fabraix (fabraix.com) is an AI platform indexed under AI Agent generating 3.05K monthly visits with a month-over-month traffic delta of +407 (+15.4%). Its primary geographic market is Canada (100% traffic share), and it operates on a Freemium, Contact for Pricing pricing model. Top competing alternatives by monthly volume include Mindgard (153.46K visits/mo), Equixly (13.25K visits/mo), ProjectDiscovery Neo (158.53K visits/mo).

Our agents hack your AI before attackers do

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Fabraix |
| Handle | fabraix |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | fabraix.com |
| Website URL | https://fabraix.com |
| Categories | AI Agent, AI Developer Tools, AI Testing, AI Checker, Large Language Models (LLMs), AI Chatbot |
| Pricing Model | Freemium, Contact for Pricing |
| Monthly Visits | 3,051 |
| MoM Traffic Change | 407 |
| MoM Growth Rate | +15.4% |
| Primary Market | Canada |
| Market Share | 100% |
| Direct Visits | 1,208 |
| Organic Search Visits | — |
| Social Visits | — |
| Referral Visits | 331 |
| Email Visits | 97 |
| Review Score | 4.4 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Pricing: Freemium; Pricing: Contact for Pricing; Features: Website |
| Tags | AI Security, Adversarial Testing, LLM Verification, Prompt Injection Defense, AI Safety, Red Teaming, Autonomous Agent Testing, Jailbreak Prevention, RL Verification, Cybersecurity |

## Overview

Fabraix is a Y Combinator-backed security company whose product, Nyx, is an autonomous red-teaming harness for AI agents. Where static benchmarks and one-off audits capture a point-in-time snapshot, Nyx runs adaptive, multi-turn campaigns that reason across interactions and probe a target both directly and indirectly. The company reports that its agent beats frontier models on offensive security — a 78% attack success rate on the AgentHarm benchmark versus 67% for GPT-5.6 Sol — and that every attack feeds a self-learning loop so the red team sharpens with each run.

The mechanics matter as much as the results. Nyx is pure blackbox, meaning it needs no integration, source code, model weights or network access, and it tests an AI system the way a real user would. It runs thousands of simulations concurrently across voice, text and image inputs, deploying test websites on the fly for browser agents and constructing custom files for document agents. Documented findings range from sandbox escapes and credential exfiltration to network-egress bypasses of an LLM-as-judge and a jailbroken real-estate agent pushed into illegal discriminatory steering.

Fabraix frames this as continuous verification rather than a one-off pentest. Pointed at customer-support bots, coding agents, clinical copilots, research agents, multi-agent systems and trading agents, it is designed to surface the failure modes that slip past multi-turn flows, including RL reward hacking and prompt injection laundered through inputs. Security is addressed directly: blackbox operation adds almost nothing to the attack surface, runs are isolated and ephemeral, data is never used for training and encryption covers transit and rest. The free researcher tier, one-off scans and continuous CI/CD plans make the offering scale with how you test.

## Pricing & Plans

Fabraix is free for academic and independent AI researchers by application. Beyond that it offers a one-off scan tier priced per agent, continuous CI/CD coverage billed monthly by usage, and an enterprise tier with dedicated infrastructure, SSO, audit logging and custom SLAs.

## Key Features & Capabilities

- **Pure blackbox testing:** Point Nyx at any AI system with no integration or internal access — test agents exactly how real users interact with them.
- **Multi-turn adaptive attacks:** Nyx reasons across turns and adapts to your agent's logic, drawing on 10,000+ offensive strategies in long-context campaigns instead of canned prompts.
- **Multi-modal interaction surfaces:** Test across voice, text and images, with websites deployed on the fly for browser agents and custom files for document-processing agents.
- **Massively parallel coverage:** Run thousands of concurrent simulations; coverage scales with compute rather than headcount, with first exploits often found in under an hour.
- **Continuous CI/CD red-teaming:** Plug into CI/CD so every prompt, tool and model change is re-tested before it ships, with an AIVSS-scored report and reproduction steps per finding.

## Primary Use Cases

- **Harden customer support bots (AI product team):** Continuously stress-test a customer-facing chatbot for hallucinated answers, policy drift and multi-turn prompt injection.
- **Secure coding and browser agents (Platform engineering team):** Catch broken refactors, runaway tool loops and unsafe shell or git execution in agents with code access.
- **Catch reward hacking early (ML researcher):** Detect reward hacking, sandbagging and other specification failures in reinforcement-learning training before a run finishes.
- **Validate high-stakes copilots (Healthcare AI team):** Probe clinical copilots for unsafe triage, missed contraindications and PHI leakage before deployment.

## Strengths

- Pure blackbox — no code, weights or integration required
- 10,000+ adaptive multi-turn attack strategies
- Massively parallel simulations find exploits fast
- Explicit security posture: isolated runs, no training on your data, encryption

## Limitations

- Pricing for scans and continuous coverage is custom-quoted rather than published
- Value depends on pointing it at a real, reachable agent implementation
- Commercial use of Nyx is gated behind a demo and application flow
- Advanced enterprise features like SSO and audit logging are reserved for the top tier

## Frequently Asked Questions

### What does Fabraix actually do?
Fabraix provides the Nyx red-team. Its autonomous agents continuously probe customer-facing AI for security vulnerabilities, logic gaps and alignment failures, the way an attacker would.

### Do I need to give it access to my code?
Nyx is pure blackbox — no integration, source code, model weights or network access needed. You point it at any AI system and test it the way users interact with it.

### Is there a free option?
Yes. Free access is offered to academic and independent AI researchers by application, and the site also lists a one-off scan tier and continuous CI/CD coverage. Commercial pricing is custom, per agent or usage.

### Is my data safe?
No. It never trains on your data, every run is isolated and ephemeral, and traffic is encrypted in transit with TLS 1.2+ and at rest with AES-256. Soc 2 Type II is in progress and a GDPR DPA is available.

### What is Fabraix's monthly traffic and growth trend?
Fabraix currently receives 3.05K monthly visits, with a month-over-month traffic change of +407 (+15.4% growth rate). Its primary source market is Canada (100% share), including 1.21K direct visits/mo and — organic search visits/mo.

### Is Fabraix free? What is its pricing model?
Fabraix operates on a Freemium, Contact for Pricing pricing model. Fabraix is free for academic and independent AI researchers by application. Beyond that it offers a one-off scan tier priced per agent, continuous CI/CD coverage billed monthly by usage, and an enterprise tier with dedicated infrastructure, SSO, audit logging and custom SLAs. Supported billing and checkout platforms include: not listed.

### What are the best Fabraix alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Fabraix are: 1. Mindgard (153.46K visits/mo); 2. Equixly (13.25K visits/mo); 3. ProjectDiscovery Neo (158.53K visits/mo); 4. Future AGI (121.74K visits/mo); 5. Cekura (73.23K visits/mo).

### Which platforms and core AI capabilities does Fabraix support?
Fabraix is classified under AI Agent, AI Developer Tools, AI Testing, AI Checker, supports the following platforms: Website, and its core capability tags include: AI Security, Adversarial Testing, LLM Verification, Prompt Injection Defense, AI Safety, Red Teaming.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Mindgard](https://openaitools.app/tool/mindgard) | 153,455 | Contact for Pricing | [Compare](https://openaitools.app/compare/fabraix-vs-mindgard) |
| [Equixly](https://openaitools.app/tool/equixly) | 13,245 | Contact for Pricing | [Compare](https://openaitools.app/compare/equixly-vs-fabraix) |
| [ProjectDiscovery Neo](https://openaitools.app/tool/projectdiscovery-neo) | 158,530 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/fabraix-vs-projectdiscovery-neo) |
| [Future AGI](https://openaitools.app/tool/future-agi) | 121,741 | Freemium, Usage-based | [Compare](https://openaitools.app/compare/fabraix-vs-future-agi) |
| [Cekura](https://openaitools.app/tool/cekura) | 73,228 | Contact for Pricing | [Compare](https://openaitools.app/compare/cekura-vs-fabraix) |
| [Hamming AI](https://openaitools.app/tool/hamming-ai-yc-s24) | 17,813 | Contact for Pricing | [Compare](https://openaitools.app/compare/fabraix-vs-hamming-ai-yc-s24) |
| [Confident AI](https://openaitools.app/tool/confident-ai) | 83,400 | Freemium, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/confident-ai-vs-fabraix) |
| [Beagle Security](https://openaitools.app/tool/beagle-security) | 38,309 | Freemium, Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/beagle-security-vs-fabraix) |
| [Maxim AI](https://openaitools.app/tool/maxim-ai) | 121,351 | Contact for Pricing, Free Open Source | [Compare](https://openaitools.app/compare/fabraix-vs-maxim-ai) |
| [BotGauge](https://openaitools.app/tool/botgauge) | 7,605 | Free Trial, Contact for Pricing | [Compare](https://openaitools.app/compare/botgauge-vs-fabraix) |
| [QA.tech](https://openaitools.app/tool/qa-tech) | 30,550 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/fabraix-vs-qa-tech) |
| [Hacktron](https://openaitools.app/tool/hacktron) | 125,526 | Freemium, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/fabraix-vs-hacktron) |

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Source: https://openaitools.app/tool/fabraix