OpenAI新模型GPT-5.1发布，不跑分不刷榜，主打一个说人话

Core Insights - The article discusses the recent upgrade of ChatGPT to version GPT-5.1, emphasizing its enhanced intelligence and conversational abilities [3][4]. Group 1: Model Features - GPT-5.1 includes two sub-models: GPT-5.1 Instant for quick responses and GPT-5.1 Thinking for complex reasoning [5][7]. - The upgrade aims to make simple questions faster and complex questions smarter, with OpenAI's CEO praising improvements in instruction adherence and adaptive thinking [6][20]. - GPT-5.1 Instant is designed for everyday conversations, providing a more friendly and engaging interaction style compared to the previous version [10][11]. Group 2: User Experience - The new model allows users to customize the tone and style of interactions, offering eight predefined personality traits, including professional and friendly [26][27]. - Users can also adjust various characteristics of ChatGPT's responses, such as conciseness and warmth, enhancing personalization [27][28]. - Early user tests indicate that the more personalized GPT-5.1 provides a unique and engaging experience, showcasing its ability to respond humorously and empathetically [29][31]. Group 3: Performance Comparison - GPT-5.1 Instant demonstrates a significant improvement in response time, being able to answer typical tasks twice as fast as its predecessor [20]. - In complex tasks, GPT-5.1 Thinking not only provides clear explanations but also adds contextual information, enhancing user understanding [23][24]. Group 4: Future Developments - OpenAI plans to introduce both GPT-5.1 Instant and GPT-5.1 Thinking to its API later this week, expanding access to these advanced features [25].