The US Secretary of State John Kerry, on a visit to Saudi Arabia, has insisted that the two allies agreed on the "goal in Syria".
The visit is the first since the Saudis were angered by the US decision not to bomb Syria in the wake of a chemical weapons attack on the outskirts of Damascus in August.
A senior prince said at that time that Riyadh was contemplating a "major shift" away from Washington.
"There is no difference in our mutually agreed upon goal in Syria," Kerry told a joint news conference with his Saudi counterpart, Prince Saud al-Faisal, on Monday.