OpenAI has launched the next generation ChatGPT, the GPT-5.1 model. According to the company's statement, this version automatically replaces the previous GPT-5 model and stands out with its personalized "character" feature.
The editorial office reports that four main characters have been introduced in the system: friendly, efficient, professional, and quirky. Additionally, the basic GPT-5.1 version has been likened to the previous GPT-4o model with a softer and more human communication style.
The new model determines its thinking time based on the complexity of the task. OpenAI has introduced two main versions: Instant — a faster and more conversational mode, and Thinking is designed for complex problems.