OpenAI has officially retired its GPT-4o model, ending access to the conversational AI that was previously reinstated after user complaints. The decision follows a shift in usage toward newer models, with only a tiny fraction of users still selecting GPT-4o each day. The retirement comes amid ongoing wrongful death lawsuits that reference the model, and it marks the latest instance of OpenAI sunsetting a version of its ChatGPT technology. Read more →