Living definition
What is DARPA AI Cyber Challenge (AIxCC) Semifinals?
Cybersecurity & Threat DefenseSecurity & Identity
- As of
- 2026-10-05
- Revision
- 2026-10-06.1
- Method
- v1.4.0
Definition
The term, in context
AI-assisted draft · approved dataset
The DARPA AI Cyber Challenge (AIxCC) Semifinals is the qualifying round of a United States government competition in which teams build systems that find and repair software vulnerabilities without human intervention. Competing cyber reasoning systems are scored on how many injected and naturally occurring defects they discover across open-source codebases and how many they fix with working patches that do not break the program.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-10-05, verified readiness is 25 (claimed 35, reported 35, gap 10) — Weak evidence strength; current signals suggest Consider the 2024 semifinal systems for supervised research pilots on selected C and Java projects.
The readiness fact belongs to the canonical Readiness Verdict for DARPA AI Cyber Challenge (AIxCC) Semifinals.
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06