OpenAI announced the retirement date for several legacy artificial intelligence (AI) models in ChatGPT. Most notable in the list is the GPT-4o, which has already survived one sunset attempt. In August 2025, the San Francisco-based AI giant tried to retire the model after introducing GPT-5, but many users protested, highlighting that the newer model lacked the emotiona…​OpenAI announced the retirement date for several legacy artificial intelligence (AI) models in ChatGPT. Most notable in the list is the GPT-4o, which has already survived one sunset attempt. In August 2025, the San Francisco-based AI giant tried to retire the model after introducing GPT-5, but many users protested, highlighting that the newer model lacked the emotiona…  ​ ai