At the stroke of 1 a.m., OpenAI made a groundbreaking announcement with the release of GPT-5-Codex. As the name implies, this iteration represents a GPT-5 variant meticulously tailored for agent programming endeavors. Drawing from OpenAI's official blog post, the training regimen for GPT-5-Codex was meticulously crafted to emulate real-world software engineering challenges. This strategic focus endows it with the remarkable ability to swiftly respond during concise, interactive exchanges and to autonomously tackle intricate tasks. Notably, its code review capabilities are adept at pinpointing critical vulnerabilities prior to the code's deployment.