Employing artificial intelligent robots in restaurants has not proved such a smart idea after all, media reports said.
A number of restaurant owners have chosen to fire about 10 robots because they were just not clever or sophisticated enough to do their jobs properly, Xiamen Daily reported.
The plug has been pulled on a number of the robots - employed as chefs and waiters - only a few years after a catering business in the seaport city of Xiamen, in southern Fujian province, employed them instead of people, Hong Kong's South China Morning Post quoted the daily as saying.
Now only two of them remain, to greet customers as they arrive, with the other two apparently canned.
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"The robots were virtually not intelligent at all," an employee at the restaurant called 'Chopsticks Passion' said.
While the robot waiters were an excellent gimmick to woo customers, they were not quite so good at their programmed task of serving food and drink to customers, the report said.
"They were merely standing there to look fancy," a worker said.
Another robot-themed restaurant closed down less than six months after its opening.
Past diners had complained that dishes prepared by the robot chefs were "unpalatable".
"The food was not tasty at all and the whole restaurant was very smoky because of the poor cooking skills of the robot chefs," one diner said.
For a restaurant to employ a robot worker it must pay about 50,000 yuan (over USD 7,700) for each robot and then several hundred yuan each month for its upkeep, including repairs, plus electricity.
"Human beings can react to their environment effectively, but these robots are not able to do so," Sun Qimin, chairman of Siert, another robot maker, said.
The current state of robotics and artificial intelligence means that the technology is not quite advanced enough for robot waiters to work effectively, one expert said.