This article discusses software internally used by Apple.
Acquiring a copy without Apple's consent is illegal and may result in being scammed.
The following build seems to be a bigger build than both Okemo 12A93651b and OkemoAni 12A93650o. Most of its apps are present on these firmwares as well, but the big jump in size may be due to major internal changes in other parts of the firmware.
This firmware has the kernel version
Darwin Kernel Version 14.0.0: Wed Aug 6 12:20:32 PDT 2014; root:xnu-27126.96.36.199.1~1/DEVELOPMENT_ARM64_T7000.