Anna is a chatbot designed to pass the Turing Test - having a human judge incapable of telling that the bot they are chatting to is not human. The most formalized Turing Test is the Loebner Prize contest, which Anna finished seventh in 2002. Anna is a fork of ALICE, which won the competition in 2000 and 2001. Alice is designed to be a general web-bot, however, whereas Anna is really more of a general conversationalist bot, but tailored to the competition. Anna is written in a special, easy-to-learn interpreted language, called AIML.
Wow and all these years I had no idea...... I'm a bot.
