BCG + GPT-4: 12% more tasks, 25% faster, 40% quality gain (n=758)
BCG consultants with access to GPT-4 completed 12.2% more tasks, worked 25.1% faster, and produced results rated 40.2% higher in quality than the control group on tasks within AI's capability frontier; those working outside the frontier performed worse, revealing the jagged technological frontier effect.
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