OpenAI rolled out Daybreak today, integrating GPT-5.5-Cyber and Codex Security to help organizations detect and patch vulnerabilities at speed. It's the most direct shot OpenAI has taken at Claude Mythos, which Anthropic dropped a month ago but has yet to grant the EU preview access to. The cyber-AI market is suddenly the hottest enterprise category. With Anthropic still negotiating EU access and absent from the Pentagon's classified AI list, OpenAI is collecting government and enterprise wins while the competition holds back.
Different cause, same signal: Anthropic's posture is creating real distribution gaps. Worth watching whether Claude users start migrating.