Several terrorist groups launched the attack late Friday, the Syrian Observatory for Human Rights said.
Three senior terrorist commanders were among 25 fighters killed.
Syria's official SANA news agency reported that "a number of terrorists were killed and wounded" by government forces in the west of the city.
The Observatory said sporadic fighting was continuing on the western outskirts of Aleppo on Saturday morning, with Syrian Army planes carrying out air strikes and terrorist firing rockets on army positions.
The assaults were largely repelled however, though terrorist have continued sporadic attacks.