Choosing the right Technivorm can be confusing especially when their names are so similar. I wanted o find a way that could help our customers in deciphering the differences between them. The easiest way to start breaking these down would be to define them by their carafes. (T) Thermal carafes are the stainless steel containers that keep their drinks warm but do not have a hot plate that continually keeps the container hot. (G) Glass carafes do have hot plates but will not keep the drink warm if taken off the hot plate. The 2nd major division between theses coffee makers is whether they have an auto drip stop or not. This is neat feature that will prohibit the brew cycle from dripping into your carafe when the carafe is not seated against the coffee maker. The 3rd major difference in Technovorms has to deal with the filter baskets: open, half or closed option. This allows for a coffee drinker to opt for a few key features with Technovorms. The closed feature allows for a manual bypass of the brew processes. This would be used if you wanted to get a cup before the full pot was finished. The half open basket technically for the person who wants to brew ½ a pot and still wants the even consistency that brewing a full pot offers. This feature is frequently used on full pots to make the whole of the coffee stronger. It slows the extraction and can drastically change the taste. If left open the coffee pot will brew as directed and give you the great cup the all the Technivorms will. I hope this helps clear up some of the differences between. I will leave the color differences up to you.