AI

OpenAI has expanded its Daybreak cyber defense service, introducing two tiers—Blue and Red—and a new frontier cyber model, GPT-5.6-Cyber, as AI-led attacks continue to escalate.

OpenAI launched GPT-5.6-Cyber today as a specialized model for advanced vulnerability research and exploit development, targeting approved cybersecurity defenders.

Mark Zuckerberg published a lengthy essay on Monday detailing his vision for artificial intelligence, while Meta simultaneously released a new open-source AI model called Muse Glimmer, designed to rival products from Anthropic and OpenAI.

The tool allows developers to run agents like Claude Code and Gemini CLI in microVM-isolated sandboxes that protect the host filesystem and network.

GitHub Models, the experimental platform that provided a unified API and playground for multiple large language models, was officially retired in August 2026.