Fabraix YC 申请

Summer 2026Active

San Francisco

Fabraix 在 Summer 2026 批次的 Y Combinator 中作为一家 B2B 公司进行过。以下是：公司做什么、谁创立了它，以及其 YC 申请，按照真实 YC 表格逐题重建。

YC 批次: Summer 2026
行业: B2BSecurity
地点: San Francisco
团队规模: 2
状态: Active
已发布: 2026

创始人

Ahmed AlyFounder/CEO
ibrahim abduFounder/CTO

Fabraix 做什么

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.

Fabraix 的 YC 申请，重建版

Y Combinator 申请

Fabraix，Summer 2026 期。来自公开数据的真实申请问题解答。

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Fabraix

Describe what your company does in 50 characters or less.

AI agents that red-team other AI for security flaws.

What is your company going to make? Please describe your product and what it does or will do.

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.

Where do you live now, and where would the company be based after YC?

San Francisco, CA, USA. We'll stay based here after YC.

Explain your decision regarding location.

San Francisco is where AI security buyers, technical partners, and talent are concentrated. Being here lets us move fast on product and sales.

21 更多回答在完整申请中

Founders, Progress, Idea, Equity, Curious, Batch Preference 包含在完整版中。创建免费账户即可在 YC Insights 中打开，紧邻每个其他 YC 批次。

查看完整申请

常见问题解答

这是 Fabraix 的真实 YC 申请吗？

不是。Y Combinator 对提交的申请保密。这是重建版：使用 Fabraix 的公开数据（发布笔记、创始人背景、产品描述）回答真实的 YC 表格问题。它展示了像 Fabraix 这样的公司会如何向 YC 自我介绍，而不是他们提交的文本。

Fabraix 是哪个 YC 批次的？

Fabraix 是 Y Combinator Summer 2026 批次的成员。

谁创立了 Fabraix？

Fabraix 由 Ahmed Aly, ibrahim abdu 创立。

Fabraix 做什么？

The world's frontier hacker of AI agents.

如何阅读完整的重建申请？

创建免费的 Round Funded 账户。YC Insights 中包含 Fabraix 的完整 26 个问题的版本，以及其他所有 YC 批次的公司信息。