DARPA's AIxCC finals: 7 autonomous AI systems are competing RIGHT NOW to find and patch vulnerabilities in critical open-source programs like the Linux kernel, SQLite, and cURL. ๐งต
Get the latest updates on Buttercup's development and new features. Buttercup is now open source!
Buttercup is an AI Cyber Reasoning System (CRS) developed by Trail of Bits. Now that DARPA's AI Cyber Challenge (AIxCC) has officially concluded, we've made Buttercup open source! Our fully automated, AI-driven system for discovering and patching vulnerabilities in open-source software is now available for the entire security community to use, extend, and benefit from.
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Hear from experts about DARPA's AI Grand Cyber Challenge, autonomous vulnerability detection systems, and the future of AI-driven cybersecurity
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AIxCC Experience, DEF CON 33 - Las Vegas
August 7-10, 2025
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DARPA's AIxCC finals: 7 autonomous AI systems are competing RIGHT NOW to find and patch vulnerabilities in critical open-source programs like the Linux kernel, SQLite, and cURL. ๐งต
Trail of Bits is heading to the AIxCC finals! ๐ Our Cyber Reasoning System, Buttercup, ranked in the top 7 out of 39 teams in the @DARPA AI Cyber Challenge semifinals @defcon 2024.
Buttercup (the @trailofbits CRS) scores the FIRST POINT in the AIxCC! Let's GOOOO! Stay tuned for live updates from @dguido during the finals.
We are excited to announce @trailofbits won a $1mil @DARPA award to compete in the AIxCC! Learn about our approach and guiding principles.
Our complete journey and insights from DARPA's AI Cyber Challenge
DARPA's official AI Cyber Challenge program information
View all seven teams advancing to the AIxCC Finals
Official AI Cyber Challenge competition website
Get in touch with our team about Buttercup and AIxCC
Visit us at DEF CON 33 for the final competition results