Earlier quoted context omitted.
Human hours, aka poorly paid contract workers in Africa.
This is not true. For LLM data labeling, the knowledge workers are very well paid. The hourly rate is way above minimum wage. The questions oftentimes require domain knowledge. They are complex enough and cannot be answered by random person on the internet. AFAIK most of them are located in US.
Wasn't there some dubious history with OpenAI and poorly paid workers in the third world?