Hackathon In 12 days
November
Saturday
10:00–22:00 2026 · Berlin time
You sign up with the host. foundercal only links to it.
Break the Model
Berlin · November 14th · 1 day
Sponsored by Anthropic, HackTheBox, Circuit, and Nebius, with $20k+ prize value and $100 in Anthropic credits for every participant.
Entropy is gathering 100 of Europe's top AI security and alignment experts for 1 day to find, exploit, and fix the vulnerabilities in LLMs. With data leaks and malicious exploits becoming exponentially more frequent, this event is more essential than ever.
Tracks
Frontier Recursive AI: securing autonomous, self-executing LLM loops
Multi-Agent Orchestration: detecting covert channels and collusion between agents
Open Track: novel prompt injections and guardrail subversion
Prizes:
🥇 First Place Team: $10,000 in Claude Credits
🥈 Second Place Team: $6,000 in Claude Credits
🥉 Third Place Team: $4,000 in Claude Credits
Format
20 teams of 5; come solo and we'll match you 🔆
A purpose-built vulnerable AI range to attack 💉
$100 compute per person provided by Anthropic 🎁
Full catering and drinks throughout 🍕🥂
Judging
Projects are scored on novelty, impact, and real-world relevance to enterprise AI risk. Judges to be announced.
Who should apply
Alignment security researchers, ML engineers, CTF players. Spots are limited, and we're selecting for a strong, balanced room.
Hosted by Entropy. Contact [email protected] for inquiries.
AFTERPARTY LINK
[Apply →]
Full text on Luma .
Investors in the room
Founders pitch
Investors in the room
