BREAKING
OpenAI Limits GPT-5.5-Cyber Release
One End-to-End Defense Workflow
1
Detect
↓
2
Validate
↓
3
Patch
↓
4
Test & Evidence
CyberGym Record: 85.6%
GPT-5.5-Cyber
85.6
Mythos 5
83.8
GPT-5.5
81.8
Gains Over Earlier GPT-5.5
ExploitGym new
39.5
ExploitGym old
25.95
SEC-bench new
69.8
SEC-bench old
63.1
Access Controls vs Concerns
Trusted Access
TAC
●
Vetted defenders only
●
Strict review & monitoring
●
Phishing-resistant auth
Open Concerns
●
Misuse risk
●
Unequal access
●
Extra cyber flags
Balancing Defenders and Controls
AI NEWS BLITZ
OpenAI has begun a limited release of GPT-5.5-Cyber, restricted to verified defenders.