Hyatt hotel chain has implemented OpenAI's ChatGPT Enterprise across its global workforce. The system uses GPT-5.4 and Codex to improve employee productivity, streamline operations, and enhance the guest experience. This move aims to advance AI adoption within the company. --- Why it matters: This matters to researchers in AI because it showcases a large-scale deployment of advanced language models in a real-world setting, highlighting potential applications and challenges. Source: https://openai.com/index/hyatt-advances-ai-with-chatgpt-enterprise