AI日報：崑崙萬維發佈SkyReels-A3模型；百度搜索PC端全面上線AI搜索；Grok 4 AI模型永久免費開放
【AI日報速覽】1.崑崙萬維發佈SkyReels-A3模型，實現語音驅動數字人表演，支持60秒視頻生成與專業運鏡控制；2.xAI宣佈Grok4永久免費開放；3.OpenAI發佈GPT-5提示詞指南，強化編程與多模態能力；4.百度PC搜索上線AI功能，月活用戶超3.22億；5.Windows Copilot接入GPT-5，使用限制更寬鬆；6.百川智能Baichuan-M2醫療模型全球評測第一；7.iOS 26將集成ChatGPT-5；8.谷歌推出3D編輯框架BlenderFusion；9.輕量級TTS模型Kitten TTS僅25MB；10.MiniCPM-V4.0移動端視覺模型表現優異；11.Stripe報告顯示AI經濟增速達SaaS三倍。（140字）
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