I mentioned this before, but did you know that Bing has been using BERT since April of this year. That is about 6-months prior to when Google started using it. Also, Bing said in this blog post that BERT like "models are now applied to every Bing search query globally." Google only applies it to English queries in the US right now, and all featured snippets....
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Hey; Bing Has Been Doing The BERT Thing Since April
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