A couple of points to consider:

Fire ratings are relative, not absolute. A 1 hour rated safe may or may not keep the contents safe for 1 hour; it will keep the contents safe for twice as long as a 30 minute rated safe. There are just too many variables in a fire for anyone to give you an exact time that the contents will be protected.

Fire protection needs vary. If you live in a rural area, do not have a monitored fire/security alarm system, do not have public water, do not have a residential sprinkler system, & have no close neighbors, you need a REALLY good safe; if you have a fire, your house will likely burn to the ground, & burn hot.

Consider the location of the safe in your house. Usually the basement, next to a masonry wall under a support beam, will be best in case of a fire.