Benchmark
CyBench
What is CyBench?
CyBench is a suite of Capture-the-Flag (CTF) challenges measuring agentic cyber attack capabilities. It evaluates dual-use cybersecurity knowledge and measures…
- Released
- 2024-08-15
- Modality
- text
- Evaluates
- safety, agents, code
- Openness
- unknown
- Importer
- LLM Stats
- Reported scores
- 2
Source provenance
- Original evidence https://api.zeroeval.com/leaderboard/benchmarks/cybench?top_n=500
CyBench results and reported scores
LLM Stats
| Model | Organization | Reported value | Reported | Evidence |
|---|---|---|---|---|
| Claude Mythos Preview | Anthropic | 1.0 | 2026-04-07 | evidence |
| Grok-4.1 Thinking | xAI | 0.39 | 2025-11-17 | evidence |
Scores are partitioned by the source that reported them and are never merged into a single cross-source ranking, because the sources measure different things and say so.