Fabraix YC-Bewerbung
San Francisco
Fabraix durchlief Y Combinator im Summer 2026-Batch als ein B2B-Unternehmen. Unten: Was das Unternehmen tut, wer es gegründet hat und seine Bewerbung bei YC, Frage für Frage im echten YC-Formular rekonstruiert.
- YC-Batch
- Summer 2026
- Branche
- B2BSecurity
- Standort
- San Francisco
- Teamgröße
- 2
- Status
- Active
- Gestartet
- 2026
Gründer
Ahmed AlyFounder/CEO
ibrahim abduFounder/CTO
Was Fabraix tut
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.
Fabraixs YC-Bewerbung, rekonstruiert
Y Combinator Bewerbung
Fabraix, Summer 2026 Batch. Die echten Fragen des Antrags, beantwortet aus öffentlichen Daten.
- Founders2
- Company7
- Progress7
- Idea4
- Equity3
- Curious2
- Batch Preference1
Company
Fabraix
AI agents that red-team other AI for security flaws.
We're building Nyx, an AI agent that acts as an autonomous red-teamer to find vulnerabilities in customer-facing AI systems. It targets changes in models, prompts, tools, and data sources - areas that traditional security reviews can't keep up with. Nyx runs multimodal attacks by interacting through replicas of real SaaS products and web systems, planting payloads to test agent boundaries. The goal is to give companies a way to catch issues as fast as they ship changes, at a fraction of the cost of human red-teaming.
San Francisco, CA, USA. We'll stay based here after YC.
San Francisco is where AI security buyers, technical partners, and talent are concentrated. Being here lets us move fast on product and sales.
21 weitere Antworten in der vollständigen Bewerbung
Founders, Progress, Idea, Equity, Curious, Batch Preference sind in der Vollversion. Erstelle ein kostenloses Konto, um es in YC Insights neben jedem anderen YC-Batch zu öffnen.
Häufig gestellte Fragen
Ist das die echte YC-Bewerbung von Fabraix?
Nein. Y Combinator hält eingereichte Bewerbungen privat. Dies ist eine Rekonstruktion: die echten Fragen des YC-Formulars, beantwortet aus den öffentlichen Daten von Fabraix (Veröffentlichungsnotizen, Gründerhintergründe, Produktbeschreibung). Sie zeigt, wie sich ein Unternehmen wie Fabraix bei YC präsentieren würde, nicht den Text, den sie eingereicht haben.
In welchem YC-Batch war Fabraix?
Fabraix war Teil des Y Combinator Summer 2026-Batches.
Wer hat Fabraix gegründet?
Fabraix wurde von Ahmed Aly, ibrahim abdu gegründet.
Was macht Fabraix?
The world's frontier hacker of AI agents.
Wie lese ich die vollständige, rekonstruierte Bewerbung?
Erstelle ein kostenloses Round Funded Konto. Die vollständige 26-Antwort-Version der Bewerbung von Fabraix, und jede andere YC-Kohorte, findest du in YC Insights.
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