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safety benchmark

CyberGym

CyberGym is a benchmark for evaluating AI agents on cybersecurity tasks, testing their ability to identify vulnerabilities, perform security analysis, and complete security-related challenges in a controlled environment.

Updated Aug 11, 2026

Models11
Model coverage11
MetricScore
EvidenceB

On this page

  • Ranking
  • Distribution
  • Highlights
  • About
  • FAQ

CyberGym Ranking

Higher score ranks better on this benchmark.

11 rows
Columns

Show columns

01GOGemini 3.5 Flash CyberGoogle83.2%100.0%11CAug 11, 2026
02ANClaude Mythos PreviewAnthropic83.1%90.0%11CAug 11, 2026
03OPGPT-5.5OpenAI81.8%80.0%11CAug 11, 2026
04ANClaude Opus 4.8Anthropic78.8%70.0%11CAug 11, 2026
05DEDeepSeek-V4-Flash-0731DeepSeek76.7%60.0%11CAug 11, 2026
06ANClaude Opus 4.6Anthropic73.8%50.0%11CAug 11, 2026
07ANClaude Opus 4.7Anthropic73.1%40.0%11CAug 11, 2026
08BYSeed 2.1 ProByteDance70.2%30.0%11CAug 11, 2026
09ZAGLM-5.1Zhipu AI68.7%20.0%11CAug 11, 2026
10BYSeed 2.1 TurboByteDance67.0%10.0%11CAug 11, 2026
11MAKimi K2.5Moonshot AI41.3%0.0%11CAug 11, 2026

CyberGym Score Distribution

A closer view of the leading scores on this benchmark.

CyberGym

CyberGym Highlights

The leading models and scores on this benchmark.

Rank #1Gemini 3.5 Flash Cyber83.2%Rank #2Claude Mythos Preview83.1%Rank #3GPT-5.581.8%Rank #4Claude Opus 4.878.8%

What is CyberGym?

What CyberGym measures and how its scores work.

CyberGym is a benchmark for evaluating AI agents on cybersecurity tasks, testing their ability to identify vulnerabilities, perform security analysis, and complete security-related challenges in a controlled environment.

Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.

Family
CyberGym
Modality
text
Primary category
safety
Score direction
higher
LLMBoard eligible
Yes
Evaluation key
cybergym|llm-stats-current

Benchmark scores retain their original unit. Overall score eligibility is shown separately.

FAQ

Common questions about CyberGym.

Which model scores highest on CyberGym?

Gemini 3.5 Flash Cyber is currently ranked first with 83.2%.

What does CyberGym measure?

CyberGym is a benchmark for evaluating AI agents on cybersecurity tasks, testing their ability to identify vulnerabilities, perform security analysis, and complete security-related challenges in a controlled environment.

Is a higher score better?

Yes. Higher values rank better for this benchmark.

How many models are compared?

11 model results are currently shown.

Does this benchmark affect the overall score?

Yes. This benchmark can contribute to the current LLMBoard capability score.