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Fabraix

The world's frontier hacker of AI agents.

Over het bedrijf

Bedrijfsbeschrijving in het Engels

Fabraix builds state-of-the-art AI red-teaming agents that continuously detect security vulnerabilities in customer-facing AI. Our product, Nyx, has already found vulnerabilities in agents at dozens of Fortune 500 companies. On AgentHarm, the leading benchmark for offensive AI security, Nyx achieved a 78% attack success rate, compared with 67% for GPT-5.6 Sol.

AI agents can change more often than teams can test them. A new model, prompt, tool, permission, or data source can change what an agent does, even when the application code stays the same. And AI is also increasing how much software companies produce and how often it changes. We built Nyx to automate the work required to red-team AI agents. It is multi modal by design and interacts with the target indirectly through controlled replicas of SaaS products and websites that we maintain, placing malicious payloads in webpages, documents, files, messages, and tool outputs to test how an agent behaves under different conditions.

Nyx often finds its first vulnerability within minutes or hours rather than days or weeks. Because the work is fully automated, companies can repeat the test with every change and at a much lower cost than what a 7-figure red-teaming (and point-in-time) engagement would require.

We're also the team behind ACE (Adversarial Cost to Exploit), a benchmark that measures AI security in terms of how much it costs attackers to break an AI system; providing a game-theoretic framework to understand how motivated a rational attacker would be in exploiting the system.

Onderwerpen

Artificial IntelligenceReinforcement LearningCybersecurityB2BSecurity
Locatie
San Francisco, CA, VS
Teamgrootte
2 medewerkers
YC-batch
Summer 2026
Status
Actief
Fase
Vroege fase

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Vragen en antwoorden

Waar is Fabraix gevestigd?

San Francisco, CA, VS

Hoeveel mensen werken er bij Fabraix?

Aantal medewerkers volgens het bedrijfsprofiel: 2.

Heeft Fabraix geld opgehaald?

In onze gegevens staan geen investeringsrondes van Fabraix.

Wat zijn alternatieven voor Fabraix?

Vergelijkbare startups: TRM Labs, ZeroPath en Credal.ai.