Study finds employees lose a workday each week fixing AI errors

A British study of 2,000 employees found that nearly half redo tasks their colleagues completed incorrectly with artificial intelligence tools, spending nearly seven hours a week doing so.

A study by the British Arden University of 2,000 adult employees found that 46 percent of workers have to redo work produced incorrectly by their colleagues using artificial intelligence tools. This takes them an average of six hours and 57 minutes a week, nearly a full workday.

According to the study, two in 10 employees choose to redo the task from scratch, while half of those correcting their colleagues’ work turn to artificial intelligence itself to help fix the errors.

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Nearly two-thirds of participants acknowledged using artificial intelligence over the past three months, mostly to search for information, write emails and generate ideas. The proportion is higher among younger generations, with 73 percent of Generation Z and 72 percent of millennials using tools such as ChatGPT and Claude, compared with 56 percent of Generation X. Some 53 percent of employees do not tell their managers that they use these tools at work.

Vitaly Klopot, the university’s chief innovation and commercial officer, said, "Getting an answer from a chatbot is only the starting point," adding: "A quick draft may save one person time, but if a colleague spends hours correcting it, employers need to consider the impact on the entire team."