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Systems Operational · v2.4
Fabraix

Fabraix

Autonomous AI red-teaming platform to detect safety vulnerabilities.

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At a Glance
Website
fabraix.com
Category
Developer Tools
Ideal For
Developer, Founder
Platforms
Web, API
Added
July 31, 2026
Pricing
Paid
Last Verified
September 3, 2026
Fabraix screenshot

What is Fabraix?

TL;DR

Fabraix is an autonomous AI red-teaming platform that uses adaptive adversarial testing to uncover security, logic, and alignment weaknesses in customer-facing AI agents before those failures become production risks.

  • Flagship red-teaming agent Nyx launching adaptive adversarial attacks
  • Black-box penetration testing requiring only target endpoint URLs
  • Continuous CI/CD integration automatically re-testing model updates

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About

Fabraix is an AI security research and testing platform focused on adversarial verification for AI systems. Its Nyx product probes AI agents and applications through black-box, multi-turn testing to uncover weaknesses before attackers or users encounter them. The platform is built for AI developers, security engineers, internal red teams, and organizations deploying customer-facing agents. Nyx can test systems without requiring source code, model weights, or deep internal integration, making it useful for evaluating exposed agent surfaces. Fabraix emphasizes adaptive testing across multiple interaction surfaces including text, voice, browser, and document workflows. Its testing can run many simulations in parallel and generate findings that security teams can reproduce and use for remediation. For FutureStack, Fabraix belongs in Developer Tools because it provides infrastructure for AI security verification. It is best for technical teams that need repeatable red-team coverage for AI agents and model-powered applications. Production pricing is based on the scope of scans or continuous testing.

Use Cases

Red-Team AI Agents

Run adaptive adversarial scenarios against customer-facing agents to discover jailbreaks, prompt injection, unsafe behavior, and logic failures.

Test AI Releases

Repeat security evaluations when models, prompts, tools, or agent behavior changes so new vulnerabilities are caught before deployment.

Validate Guardrails

Probe AI systems with challenging inputs and multi-turn attack paths to evaluate whether safety controls hold under pressure.

Support AI Security

Generate reproducible findings and remediation guidance that security and engineering teams can use during AI risk reviews.

Key Features

  • Flagship red-teaming agent Nyx launching adaptive adversarial attacks
  • Black-box penetration testing requiring only target endpoint URLs
  • Continuous CI/CD integration automatically re-testing model updates
  • Self-play adversarial loops generating and retaining new jailbreaks

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Pricing summary

Fabraix offers free access for qualifying non-commercial research. Production Nyx scans are priced per target or by continuous usage, with enterprise security and support available through custom arrangements.

Pricing & Plans

Popular

Enterprise Custom

Continuous security auditing for production systems.

Custom
  • Continuous Nyx red-teaming
  • Unlimited API endpoint tests
  • SOC 2 audit report exports
  • Priority support SLAs

Standard Audit

One-time vulnerability assessments for staging models.

Custom
  • Single endpoint audit runs
  • 1,000+ adversarial simulations
  • Core vulnerability dashboard
  • Standard email support

API & CI/CD SLA

High-frequency automated checks for deployment pipelines.

Custom
  • CI/CD automated trigger setup
  • Custom self-play loops
  • Dedicated security engineer
  • VPC deployment options

Other pricing notes

  • Non-commercial researchers can apply for free access.
  • One-off scans are priced per target based on system complexity.
  • Continuous testing uses monthly usage-based pricing.
Pricing last checked: July 2026Official pricing

Pros & Cons

Pros

  • Requires no complex internal system integrations or database access
  • Launches over one thousand dynamic attack strategies to test agents
  • Supports security testing across text, voice, and browser-based agents
  • Continuous testing triggers ensure security coverage upon code changes
  • Detailed dashboards present actionable reports for developer patches

Cons

  • No public pricing models are available; requires sales contact
  • Continuous security tests can consume significant model API tokens
  • Does not patch security flaws automatically; only reports them
  • Requires technical security knowledge to interpret vulnerability logs
  • Mainly focused on conversational models rather than web firewalls

The Best Fabraix Alternatives

The best Fabraix alternatives are Guardrails AI, Promptfoo, and Staso AI.

Guardrails AI

Guardrails AI

Freemium

Developer Tools

Choose Guardrails AI if...

  • ✓you want adds a practical validation layer around LLM outputs
  • ✓you value structured data and policy enforcement
  • ✓you prefer open-source framework supports developer control
See details ↓
Promptfoo

Promptfoo

Freemium

Developer Tools

Choose Promptfoo if...

  • ✓you want open-source community edition is broadly usable
  • ✓you need combines evaluation, red teaming, and vulnerability testing
  • ✓you prefer works across many model providers and integrations
See details ↓
Staso AI

Staso AI

Freemium

Developer Tools

Choose Staso AI if...

  • ✓you want focused specifically on production AI agent reliability
  • ✓you need combines observability, evaluations, and runtime protection
  • ✓you prefer free personal plan makes it easier for small teams to test
See details ↓

Frequently Asked Questions

Reviews

Honest feedback from the FutureStack community.

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Trending Tools on FutureStack

Discover the most popular and hand-picked AI tools across FutureStack

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CommandCode

CommandCode

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  • ✓you prefer developers who prefer terminal workflows
  • ✓you need learns repeated coding preferences over time
  • ✓you prefer supports skills, memory, MCP, plugins, and commands
See details ↓
SambaNova Cloud
SambaNova Cloud

SambaNova Cloud

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Choose SambaNova Cloud if...

  • ✓you want strong open-model selection
  • ✓you need usage-based pricing by model and token
  • ✓you prefer designed for production inference workloads
See details ↓
Google Flow
Google Flow

Google Flow

Freemium

Video Generation

Choose Google Flow if...

  • ✓you want strong filmmaking-oriented workflow
  • ✓you need uses multiple Google generative models
  • ✓you prefer supports reference-driven consistency
See details ↓
Amp
Amp

Amp

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Choose Amp if...

  • ✓you want strong for complex multi-step engineering work
  • ✓you need remote agents can continue without your laptop
  • ✓you prefer specialist agents enable parallel workflows
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IBM Bob
IBM Bob

IBM Bob

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Choose IBM Bob if...

  • ✓you prefer enterprise software development
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See details ↓
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Humanloop

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Choose Humanloop if...

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  • ✓you need supports both UI-first and code-first workflows
  • ✓you prefer human and automated evaluation options
See details ↓
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LiteAi.me

LiteAi.me

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Choose LiteAi.me if...

  • ✓you want very low setup barrier for beginners
  • ✓you value students and classroom projects
  • ✓you prefer combines web publishing and Android packaging
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Scribe

Scribe

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Choose Scribe if...

  • ✓you want turns real workflows into documentation much faster than writing guides manually
  • ✓you prefer SOPs, onboarding, training, customer education, and client handoffs
  • ✓you prefer supports web, desktop, and mobile process capture on paid plans
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Cursor

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Choose Cursor if...

  • ✓you want combines editing, chat, autocomplete, and agents
  • ✓you need strong project-context awareness
  • ✓you value founders shipping quickly
See details ↓
OpenWork
OpenWork

OpenWork

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Choose OpenWork if...

  • ✓you want open source and local-first
  • ✓you need supports many model providers
  • ✓you prefer useful beyond coding and chat
See details ↓
Fabraix

Fabraix

Developer Tools

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