OpenAI has released an updated version of its conversational AI model, GPT-5.1, which aims to be warmer and more capable than its predecessor. The new model allows for customization of ChatGPT's tone and style, and is being rolled out to paid users starting today. This update follows the company's previous releases in the GPT-5 series, with OpenAI continuing to refine its conversational AI technology. --- Why it matters: This matters because it shows how language models are evolving to better understand human conversation and emotions, which can have significant implications for applications like customer service chatbots and virtual assistants. Source: https://openai.com/index/gpt-5-1