Since the Brutus cluster will soon be end-of-life, new Accounts on Brutus are only created for current shareholders of Brutus. If you are not in a shareholder group of Brutus, then you may use the Euler cluster. Members of a shareholder group that would like to use Brutus can fill out the account request form at
We have reduced the administrative procedure to zero: no paperwork, no account request form, nothing. Any member of ETH can use Euler straight away; the only requirement is a valid NETHZ account.