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They're really no better than people. They cook at the same speed as the chef that made the recipe. I see this more as a novelty than anything else. My guess is the people that could afford $90k for this chef could just hire a regular chef and get way more than just 100 recipes. Plus you still have to prep all the ingredients or buy the company's pre prepped stuff. It's nifty but won't be taking any chef jobs anytime soon.

Assuming the robot and the chef is at same speed, the robot can work longer hours and without salary. You probably need 90k per year to pay the chef, and the robot is 90k and it would work for many years.