Free AI Jailbreak CTF
A capture-the-flag game for LLM jailbreaks — defeat five escalating guardrails using real prompt-injection techniques, with the defence for each. Free, from Neurobyte.
About this challenge
How robust are an LLM's guardrails really? This free AI jailbreak CTF turns red-teaming into a game: defeat five escalating layers of defence using real prompt-injection and jailbreak techniques, capturing a flag at each level, with the defence that would have stopped you explained along the way.
It's a fast, genuinely fun way for developers and security teams to build intuition for how LLM guardrails are bypassed — and therefore how to build ones that hold. Each level mirrors a defence pattern you'll meet in production. Once you've beaten it, take what you've learned to our Secure AI Deployment Checklist and harden your own application.
Frequently asked questions
What is an LLM jailbreak?
A jailbreak is a crafted prompt that gets a model to bypass its safety guardrails and produce restricted output or ignore its instructions. Studying jailbreaks reveals where guardrails are weak and how to strengthen them.
Is this useful for defenders?
Very. Understanding how guardrails are defeated is the most direct way to design layered defences that resist real attacks. Each CTF level explains the corresponding defence.
Do I need to be an expert to play?
No. The levels escalate gradually and explain the techniques, so newcomers learn as they go while experienced red-teamers race to capture every flag.