GPT-5正式发布，刷新评分新高；陈天桥联手代季峰筹备新AI公司丨AIGC日报

Group 1 - OpenAI's GPT-5 model has been officially released, achieving top rankings in various fields including text, web development, and visual domains, as well as in challenging prompts, programming, mathematics, creative writing, and long queries [2] - Chen Tianqiao is collaborating with Dai Jifeng to establish a new AI startup, focusing on AI-driven business decision-making, breakthrough algorithms for content distribution, and AI services targeting aging and youth demographics, with a goal of achieving general artificial intelligence [2] - Apple is facing a talent drain in its AI division, with several top researchers leaving for competitors such as OpenAI, Meta, xAI, and Cohere, many of whom were involved in foundational model development [2] Group 2 - Alibaba's Tongyi Qianwen has released smaller models Qwen3-4B-Instruct-2507 and Qwen3-4B-Thinking-2507, which reportedly outperform closed-source models like GPT4.1-Nano in non-inference tasks and can compete with mid-sized models like Qwen3-30B-A3B in inference tasks [2]