Last Week in AI第251期：Mythos回归，Sonnet 5等产品动态

Last Week in AI #251 - Mythos Back, Sonnet 5, Etched, LongCat

特朗普解除对Anthropic的限制，Anthropic推出Claude Sonnet 5，Google NotebookLM更新，Etched与百度的芯片相关动态等更多内容！