There is no production implementation of Zether yet, but the paper estimated gas cost about 7188k for transfer.
Also, it worth to mention that ”users would have no way to know if their transaction would be the first in an epoch, so they cannot estimate the right amount of gas to supply”, i.e. first transaction in an epoch could use more gas than the next one.
[+] [-] moneroid|6 years ago|reply
[+] [-] exantech|6 years ago|reply
Also, it worth to mention that ”users would have no way to know if their transaction would be the first in an epoch, so they cannot estimate the right amount of gas to supply”, i.e. first transaction in an epoch could use more gas than the next one.