An air conditioner configured to condition air of a dwelling, the air conditioner (300-1) comprising: an outdoor unit; and an indoor unit including a heat exchanger, wherein the indoor unit comprises: a communicator (330-1) configured to communicate with an access point to connect the air conditioner to a network through the access point , and a controller (340-1) configured to: receive information from an external server , through the communicator (330-1), when a new terminal is connected to the access point or a terminal connected to the access point is disconnected from the access point , receive, through an inputter (310-1), an input for an Artificial Intelligence (AI) mode from an occupant of the dwelling, when the input for the AI mode is received, control the communicator (330-1) to transmit to the external server a message requesting the information, the information including information output by a neural network relating to terminals currently connected to the access point , and change an operation temperature of the air conditioner and/or an operation mode of the air conditioner in accordance with the received information. an outdoor unit; and an indoor unit including a heat exchanger, wherein the indoor unit comprises: a communicator (330-1) configured to communicate with an access point to connect the air conditioner to a network through the access point , and a controller (340-1) configured to: receive information from an external server , through the communicator (330-1), when a new terminal is connected to the access point or a terminal connected to the access point is disconnected from the access point , receive, through an inputter (310-1), an input for an Artificial Intelligence (AI) mode from an occupant of the dwelling, when the input for the AI mode is received, control the communicator (330-1) to transmit to the external server a message requesting the information, the information including information output by a neural network relating to terminals currently connected to the access point , and change an operation temperature of the air conditioner and/or an operation mode of the air conditioner in accordance with the received information. a communicator (330-1) configured to communicate with an access point to connect the air conditioner to a network through the access point , and a controller (340-1) configured to: receive information from an external server , through the communicator (330-1), when a new terminal is connected to the access point or a terminal connected to the access point is disconnected from the access point , receive, through an inputter (310-1), an input for an Artificial Intelligence (AI) mode from an occupant of the dwelling, when the input for the AI mode is received, control the communicator (330-1) to transmit to the external server a message requesting the information, the information including information output by a neural network relating to terminals currently connected to the access point , and change an operation temperature of the air conditioner and/or an operation mode of the air conditioner in accordance with the received information. receive information from an external server , through the communicator (330-1), when a new terminal is connected to the access point or a terminal connected to the access point is disconnected from the access point , receive, through an inputter (310-1), an input for an Artificial Intelligence (AI) mode from an occupant of the dwelling, when the input for the AI mode is received, control the communicator (330-1) to transmit to the external server a message requesting the information, the information including information output by a neural network relating to terminals currently connected to the access point , and change an operation temperature of the air conditioner and/or an operation mode of the air conditioner in accordance with the received information. <EOS>