<|im_start|>user
Which NFL team has the most Super Bowl championship wins?<|im_end|>
<|im_start|>assistant
The Pittsburgh Steelers and the New England Patriots are tied for the most Super Bowl championship wins. Both teams have won 6 Super Bowl championships. The Steelers were the first team to achieve this in 2008, while the Patriots earned their sixth championship win in 2018.<|im_end|>
