MIT created duplicate AI workers to tackle thousands of different tasks. The verdict? Most of the time AI is still just ‘minimally sufficient’

The growing share of American office workers who have experimented with artificial intelligence in their day-to-day work have likely had a few moments of doubt as to their long-term job stability. 

But for all the improvements in AI over the past few years, the technology is still only able to hit low bars in specific workplace tasks, according to recent data published by MIT. Even then, it might still be making some big mistakes.

Workers concerned they might soon be replaced...