Anthropic Mythos retains market share lead over GPT-5.5 in cybersecurity

Despite GPT-5.5-Cyber's capabilities, Anthropic's Mythos will maintain a 55%+ market share in enterprise cybersecurity AI tools due to stronger brand trust and slower adoption of new models. GPT-5.5's guardrail restrictions will limit its competitive edge.

Implied probability (Yes)

65%