Machine intelligence competition 2007 #9
The purpose of Elbot is to converse with users about any topic under the sun, rather than a specialized and self-contained set of FAQs as is usually the demand for commercial systems. He became the first natural language dialogue system on the German Internet. Elbot has a few robotic themes, but also takes on the challenging task of being conversant on just about everything. In 2008 Elbot won the prestigious Loebner Prize. Elbot speaks English and German and has his own blog: http://elbot.blogspot.com/.
Live since: 2000
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A few arbitrary other nominees and winners