Anthropic Releases Claude Sonnet 5.5 With Advanced Cyber Safeguards and Tiered Access Framework

Anthropic has released Claude Sonnet 5.5, a lower-cost model designed for routine enterprise tasks, featuring significant enhancements in cyber capabilities that match its predecessor, Claude Opus 5.
Despite being positioned for everyday workflows rather than frontier research, the model's advanced offensive cyber skills led Anthropic to implement flagship safety guardrails, routing higher-risk requests to older versions and restricting automated access.
The launch underscores a broader industry shift where safety mechanisms are transitioning from model-level restrictions to customer-identity verification programs, directly benefiting established cybersecurity partners like CrowdStrike and Palo Alto Networks while reshaping enterprise software distribution.