Inscrição YC de Fabraix
San Francisco
Fabraix passou pela Y Combinator no batch Summer 2026 como uma empresa B2B. Abaixo: o que a empresa faz, quem a fundou e sua inscrição para a YC, reconstruída pergunta por pergunta no formulário real da YC.
- Batch YC
- Summer 2026
- Indústria
- B2BSecurity
- Localização
- San Francisco
- Tamanho da equipe
- 2
- Status
- Active
- Lançada
- 2026
Fundadores
Ahmed AlyFounder/CEO
ibrahim abduFounder/CTO
O que Fabraix faz
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.
Inscrição YC de Fabraix, reconstruída
Inscrição Y Combinator
Fabraix, lote Summer 2026. As verdadeiras perguntas do formulário, respondidas com dados públicos.
- 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 respostas a mais na inscrição completa
Founders, Progress, Idea, Equity, Curious, Batch Preference estão na versão completa. Crie uma conta gratuita para abri-la no YC Insights, ao lado de todos os outros batches da YC.
Perguntas Frequentes
Esta é a inscrição real da YC de Fabraix?
Não. A Y Combinator mantém as inscrições submetidas em privado. Esta é uma reconstrução: as perguntas reais do formulário da YC, respondidas a partir dos dados públicos de Fabraix (notas de lançamento, históricos de fundadores, descrição do produto). Mostra como uma empresa como Fabraix se apresentaria à YC, não o texto que eles submeteram.
Em qual batch da YC Fabraix esteve?
Fabraix fez parte do batch Summer 2026 da Y Combinator.
Quem fundou o Fabraix?
O Fabraix foi fundado por Ahmed Aly, ibrahim abdu.
O que o Fabraix faz?
The world's frontier hacker of AI agents.
Como eu leio o application completo reconstruído?
Crie uma conta gratuita no Round Funded. A versão completa de 26 respostas do application do Fabraix, e de todos os outros lotes do YC, está no YC Insights.
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