In December 2025, OpenAI released its most advanced AI model to date, following an internal 'code red' alert. What is the version number of this model?

The version number for OpenAI's highly anticipated model, released in December 2025, was indeed GPT-5.2. This particular iteration followed an internal "code red" alert, a rare and significant event within the company that underscored the urgency and critical nature of its development. The alert signaled a period of intense focus and accelerated work, culminating in the release of what was then considered OpenAI's most advanced artificial intelligence model.

The "code red" status often indicates a breakthrough or a critical challenge that demands immediate and comprehensive attention from top researchers and engineers. In this instance, it is understood to have been triggered by either a major leap in AI capabilities that needed rapid integration and refinement, or perhaps a complex issue that required swift resolution before public deployment. The resulting GPT-5.2 model represented a substantial advancement in areas such as reasoning, contextual understanding, and multi-modal processing, building upon the foundational technologies of its predecessors. Its release marked a pivotal moment in the ongoing evolution of AI, setting new benchmarks for performance and potential applications across various industries.