OpenAI has reversed its decision to immediately discontinue older ChatGPT models, specifically ChatGPT-4o, after facing user backlash. Nick Turley, OpenAI's head of ChatGPT, acknowledged the strong attachment users felt towards the 4o model and admitted that discontinuing it without warning was a mistake. The company will now provide advance notice before retiring older models. OpenAI is also working to incorporate the positive characteristics of 4o, such as its perceived 'warmth,' into future models like GPT-5. CEO Sam Altman has also addressed the concerns on X, indicating a commitment to user preferences and model continuity. The full story is available on The Verge.