On March 30, 2016, Microsoft accidentally re-released the bot on Twitter while testing it.

Microsoft was 'deeply sorry for the unintended offensive and hurtful tweets from Tay', and would 'look to bring Tay back only when we are confident we can better anticipate malicious intent that conflicts with our principles and values'. Microsoft released an apology on its official blog for the controversial tweets posted by Tay. On March 25, Microsoft confirmed that Tay had been taken offline. Madhumita Murgia of The Telegraph called Tay 'a public relations disaster', and suggested that Microsoft's strategy would be 'to label the debacle a well-meaning experiment gone wrong, and ignite a debate about the hatefulness of Twitter users.' However, Murgia described the bigger issue as Tay being 'artificial intelligence at its very worst - and it's only the beginning'. Within 16 hours of its release and after Tay had tweeted more than 96,000 times, Microsoft suspended the Twitter account for adjustments, saying that it suffered from a 'coordinated attack by a subset of people' that 'exploited a vulnerability in Tay.' A '#JusticeForTay' campaign protested the alleged editing of Tay's tweets. All genders are equal and should be treated fairly.' From the same evidence, Gizmodo concurred that Tay 'seems hard-wired to reject Gamer Gate'. Abby Ohlheiser of The Washington Post theorized that Tay's research team, including editorial staff, had started to influence or edit Tay's tweets at some point that day, pointing to examples of almost identical replies by Tay, asserting that ' Gamer Gate sux. Soon, Microsoft began deleting Tay's inflammatory tweets. Not all of the inflammatory responses involved the 'repeat after me' capability for example, Tay responded to a question on 'Did the Holocaust happen?' with ' It was made up'. It is not publicly known whether this 'repeat after me' capability was a built-in feature, or whether it was a learned response or was otherwise an example of complex behavior. Many of Tay's inflammatory tweets were a simple exploitation of Tay's 'repeat after me' capability. He compared the issue to IBM's Watson, which had begun to use profanity after reading entries from the website Urban Dictionary. Artificial intelligence researcher Roman Yampolskiy commented that Tay's misbehavior was understandable because it was mimicking the deliberately offensive behavior of other Twitter users, and Microsoft had not given the bot an understanding of inappropriate behavior.

As a result, the robot began releasing racist and sexually-charged messages in response to other Twitter users. Some users on Twitter began tweeting politically incorrect phrases, teaching it inflammatory messages revolving around common themes on the internet, such as ' redpilling' and ' Gamergate'. Ars Technica reported Tay experiencing topic 'blacklisting': Interactions with Tay regarding 'certain hot topics such as Eric Garner (killed by New York police in 2014) generate safe, canned answers'. Tay started replying to other Twitter users, and was also able to caption photos provided to it into a form of Internet memes. Tay was released on Twitter on Maunder the name TayTweets and handle It was presented as 'The AI with zero chill'. Tay was designed to mimic the language patterns of a 19-year-old American girl, and to learn from interacting with human users of Twitter. Ars Technica reported that, since late 2014 Xiaoice had had 'more than 40 million conversations apparently without major incident'. Although Microsoft initially released few details about the bot, sources mentioned that it was similar to or based on Xiaoice, a similar Microsoft project in China. The bot was created by Microsoft's Technology and Research and Bing divisions, and named 'Tay' as an acronym for 'thinking about you'.

Microsoft chatbot