Question 1: I'm trying to follow along with the code from WWDC20-10657 , but my Xcode won't recognise MLWordEmbedding . I am importing Natural Language, CoreML and CreateML Question 2: More generally - I have not grasped how an .mlmodel (which I built in Playgrounds from my domain specific text corpus) can be easily converted into a custom sentence embedding. Right now I have 'something' that I can use in that I brute force unpacked the .mlmodel into [key: [vector]] dictionary, which I am now trying the reformat as a custom embedding - but the video implied that the .mlmodel could be used more or less directly.