Consultants who use ChatGPT-4 can perform tasks significantly better than those who do not use the tool, according to an academic study that found below-average performers improved the most when using AI.

The Harvard Business School research found that consultants using the generative artificial intelligence tool finished 12.2 per cent more tasks, completed them 25.1 per cent faster, and achieved results that were 40 per cent higher quality, on average, than those who did not use the tool.