Gov. Andrew Cuomo may be willing to negotiate his tax cap, but making it a temporary solution to the highest property taxes in the country — a possible key detail in the Assembly cap proposal — won’t work.

Cuomo spokesman Josh Vlasto this afternoon knocked down any notion that a cap could be a short-term measure:

The Assembly’s position on the property tax cap is a non-starter.

Assembly Speaker Sheldon Silver, D-Manhattan, said Tuesday he would introduce his own, separate proposal for a 2 percent cap on property taxes. Some differences may include allowing the cap to expire within 3-5 years and include exemptions for costly pensions.

The Republican-led Senate already approved the cap Jan. 31. Cuomo said Wednesday that some lawmakers in the Assembly may consider his proposal “too rigid” and again signaled a willingness to hear different ideas on the cap.

He plans a statewide tour promoting his version of the cap, which caps local property taxes at 2 percent or the rate of inflation, along with an ethics bill and a measure to legalize gay marriage.