New Delhi, Feb 15 Sam Altman-run OpenAI has removed access to GPT-4o AI model in its ChatGPT app — a move which has left several users worldwide, especially in China, mourning the loss, as they treat their chatbot as an “emotional or romantic companion”, according to a report in Wired.In August 2025, OpenAI first tried to retire GPT-4o, the specific model that helps many users believe is “more affectionate and understanding than its successors”. The decision to pull the plug was met with immediate backlash.OpenAI then reinstated 4o in the app for paid users but the reprieve has turned out…