At the re:Invent conference on Tuesday, Amazon Web Services (AWS) announced the launch of its new multimodal generative AI model series - Nova. The released Nova series includes four text generation models: Micro, Lite, Pro, and Premier, as well as the image generation model Nova Canvas and the video generation model Nova Reel. Amazon CEO Andy Jassy stated that the Micro, Lite, and Pro models will be available that day.

San Francisco-based startup Physical Intelligence recently announced that it successfully raised $400 million, bringing its post-money valuation to $2.4 billion. This funding round attracted the attention of several prominent investors, including Amazon founder Jeff Bezos, OpenAI, Thrive Capital, and Lux Capital. According to a company spokesperson, Bond Capital also participated in this investment.

Recently, Amazon began testing advertisements in its newly launched shopping chatbot, Rufus. This information was revealed through an update log released by Amazon. The company stated that in the future, users of Rufus will see some sponsored ads related to their searches during conversations. These ads will not only appear in the chat interface, but may also be accompanied by text generated by Rufus to help users better understand the ad content.

["Established a database containing over 20,000 rice field images and yield data to train a convolutional neural network model.", "The model explains 68-69% of yield variation, highlighting the importance of panicles in yield estimation.", "The model predicts accurately, is cost-effective, and does not require tedious crop sampling, demonstrating the potential for regional yield monitoring."]