In Strix Cloud, the usage fees are billed only for what you use, and there is no minimal usage period. Even if you stopped using it after a very short period of time for some reason, no further usage fees are charged. Please feel free to use it.
Please note, however, that the instance management fees that apply to instances of Type 1 or higher are rounded up on a monthly basis. For example, even if you use an instance only for a day, we will charge you the fee for one month (which is ¥1,000 per instance).