The objects in this scene are using both raytraced transparency as well as raytraced reflection. The difference, though, if you render it out is that the materials are set to have a blurry transparency. This is adjusted with the Gloss values in the Mirror Transp panel. There’s one for both raytraced reflection as well as raytraced transparency.
Just know that this will like give you very long render times. If you have an old computer, you may want to go grab a cup of coffee when you render this.
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