AI日報：xAI 震撼發佈Grok4；微軟開源全新Phi-4-mini版本；上海累計82款大模型通過備案
【AI日報速覽】1.xAI發佈Grok4模型，數學推理與代碼生成能力突出，含開發者專用版本Grok4Code；2.微軟開源Phi-4-mini，推理效率提升10倍，適配邊緣設備；3.上海82款大模型通過備案，垂類應用成效顯著；4.Hugging Face推出開源機器人Reachy Mini賦能AI開發者；5.Perplexity發佈AI瀏覽器Comet挑戰Chrome；6.OpenAI將首推開放權重模型打破閉源慣例；7.谷歌醫療AI模型MedGemma上新，單GPU可運行；8.OpenAI斥資65億收購艾維AI硬件公司，進軍硬件市場。
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