Today, OpenAI made a dual splash in the AI landscape by simultaneously rolling out two significant new models: GPT-5.1 Pro and GPT-5.1-Codex-Max. Among these innovations, the premier coding model stands out with its groundbreaking 'compression' mechanism. This novel feature facilitates uninterrupted programming across millions of tokens, spanning over a 24-hour period. The AI sector has been abuzz with frequent updates lately, exemplified by the recent launches of Grok 4.1 and Gemini 3 Pro within the last 48 hours. In a subtle move, OpenAI has now quietly introduced GPT-5.1 Pro to the market, opting for a brief two-sentence announcement rather than a comprehensive blog post to herald its arrival.
