Loebner Prize 2006
Icogno scooped the 2006 Loebner Prize Bronze Medal after judges decided that its AI called Joan was the "most human computer program".
The competition is based on the Turing test, which suggests computers could be seen as "intelligent" if their chat was indistinguishable from humans.
The gold medal, which goes to an AI that fools the judges, is unclaimed.
(From this BBC article)
What the article misses to mention is the fact that the Loebner prize is not generally accepted as an AI prize. The setup of the competition incites people to build systems that try to fool the judges without the need for any real reasoning. To succeed in this competition people try to build systems that can send responses to chat messages but that otherwise have nothing to do with human intelligence.