Anthropic
Anthropic Expands Access to Its Cybersecurity AI Models
Anthropic has expanded its Cyber Verification Program, giving vetted security teams controlled access to Claude Opus 5.5, Sonnet 5.5, Mythos 5.1 and future models across three tiers for defense, red teaming and safety-critical testing. Previously tightly controlled, this shows Anthropic is gradually drip-feeding the model out more widely so companies can build resilience ahead of any general release.
