OpenAI发布 ChatGPT-5！免费用户首个推理模型，性能更强，幻觉更少

Core Insights - OpenAI launched its latest AI model, GPT-5, on August 6, 2023, claiming it to be smarter, faster, and more useful, particularly in writing, programming, and healthcare [1][3] - The company anticipates that ChatGPT's weekly active users will reach 700 million this week, reflecting its rapid mainstream adoption since the introduction of ChatGPT in 2022 [1] - OpenAI is in discussions with investors regarding a potential stock sale, with an estimated valuation of $500 billion [1] Model Features - GPT-5 has a lower hallucination rate, meaning it fabricates answers less frequently, and underwent extensive safety evaluations, including 5,000 hours of testing [1] - The model can recognize when tasks cannot be completed and avoids guessing, providing clearer explanations of its limitations compared to previous models [2] - OpenAI demonstrated GPT-5's capability to generate different applications based on the same prompt, showcasing its versatility in creating software [2] User Access and Integration - GPT-5 will be available to free, Plus, Pro, and team users, with free users having access to a mini version if they reach usage limits [3] - Microsoft will integrate GPT-5 into its products, including Microsoft 365 Copilot and Azure AI Foundry, allowing developers to incorporate the AI model into third-party applications [3] - Box's CEO highlighted GPT-5 as a breakthrough, noting its improved ability to understand complex documents and make decisions using higher-level reasoning [4] API and Consumer Interaction - OpenAI released three versions of GPT-5 through its API, catering to different cost and latency needs, while also providing open-weight language models for developers and researchers [4] - The interaction with GPT-5 is designed to feel more natural and human-like, with the model likened to having a team of PhD-level experts available at all times [4]