The new chatbot model, called GPT-5.2, has improved from previous versions in building spreadsheets and presentations, coding, “perceiving images,” processing longer contexts and “handling complex, multistep projects,” OpenAI said.

OpenAI and its largest financial backer, Microsoft , were sued in California state court on Thursday over claims that OpenAI's popular chatbot ChatGPT encouraged a mentally ill man to kill his mother and himself.