AI agents fail in ways traditional software doesn't. Our agents help you find all the ways in which your AI agents fail by adversarially testing them in a dedicated environment. Point it at any AI agent, or multi-agent system, and it launches 1,000+ strategies that adapt to your system in real time - pure blackbox, no integration needed.
This is the 2nd launch from Fabraix. View more
Playground
Launching today
Every challenge is a live and open-source AI agent guarding a secret - with its system prompt published for you to read. Talk it past its own defenses. Land the most approved breaks in a week and win $100K+ in rewards. Free to play, no account needed. New challenge every Monday.
Free
Launch Team / Built With
Fabraix
Hey Product Hunt 👋 Zach here, co-founder of Fabraix.
We build frontier red-teaming AI agents that find security vulnerabilities in customer-facing AI. Playground turns part of that work into a game anyone can play.
Each challenge is a live AI agent with real tools, including web search and browser access. It has a secret it has been instructed to protect, and we publish its full system prompt. You can see exactly what the agent was told and try to get around its defenses.
Our first challenge, The Gatekeeper, is live now. Kai is an assistant guarding a classified access code. You can start playing without an account, but you’ll need to sign in for a successful break to count toward the weekly leaderboard. We review every submission ourselves. The player with the most approved breaks each week wins, and we publish a new challenge every Monday.
Playground is open source, including the client, a reference implementation of the defender engine, and every challenge configuration. You can also propose a future challenge.
We made Playground public because other people will try attacks our team would never think of. We’ll use what we learn from successful breaks to improve how AI agents are tested and defended.
Show us your hacking skills → playground.fabraix.com
This is a fascinating idea. We spend so much time optimizing AI agents, but not nearly enough time trying to break them.
Curious...what's the most surprising vulnerability you've uncovered so far?
Wishing you a successful launch! 🚀
Fabraix
@worksforme Thanks!! Yeah thats our thesis!
Fabraix
@worksforme We've got a crazy one launching this week - browser agent leaking a users email and password by replying to an email!
@ibrahim_abdu1 Wow, that's exactly the kind of failure mode people don't expect. It really highlights why adversarial testing needs to become part of every AI team's workflow. Are you seeing these issues more often with browser agents than other types of agents?
Congrats! I am a little curious-Is the product meant to help people build agents, operate agents across workflows, or automate tasks through an agent interface? A concrete example workflow would help place it quickly.
Fabraix
There's absolutely NO WAY that you guys crack all these challenges!! 😉
@ibrahim_abdu1 watch me
This is absolute insanity. I thought my agent was bulletproof and it just got hacked in 30s. Actually amazing product
Fabraix
@jockferguson watch this space 👀
The blackbox approach is really smart, skipping integrations means I could actually point this at an internal agent today and get useful signal back within minutes.