All modelsMODEL / FRONTIER COVERAGEDaybreakTYPEModelSIGNALS3FIRST SEENOct 20, 2026LAST SEENOct 26, 2026ALSO KNOWN ASOpenAI DaybreakRecent signalsHow Check Point accelerates vulnerability research with Daybreak Oct 26, 2026Greptile takes bug detection beyond code review with GPT-6 Astra Oct 26, 2026Cloudflare links vulnerability discovery to defense with OpenAI Oct 20, 2026RELATEDOpenAIGPT-6 AstraCloudflareOpenAI CodexALL MODELSLATEST SIGNAL