Yes, iWork apps are pre-installed on the 64GB and 128GB iPhone 6 and iPhone 6 Plus

[iMore.com]

A report prior to the launch of the iPhone 6 and iPhone 6 Plus claimed that the Apple iWork apps would be pre-installed on 64GB and 128GB devices. As retail launch hits today we're able to confirm the report as true, and that yes, these apps are pre-installed on your new iPhone, but worry not. If you don't want them you can delete them.

Full story from the iMore Blog...