Paramedics treated the injured people following the collision on Llanedeyrn Drive, Llanedeyrn, just before 16:50 GMT on Monday.
They were then taken to hospital for precautionary checks, South Wales Fire and Rescue Service said.
It sent crews from Malpas, Ely and Roath to help following the crash. They have now left the scene.
Four children and an adult have been injured after two buses crashed in Cardiff.