If you're truly a beginner, start with beginner bindings. They feature a low DIN range (0.75–4.5), meaning they release more easily during a fall—exactly what you want while you're learning and falling more often. This forgiving release helps prevent knee and leg injuries that can happen if a binding holds on too long when it shouldn't.
It's tempting to buy up a level so you won't need to upgrade later, but that's a real safety risk. A binding that's too stiff for your current ability may not release when it should, and that's far more dangerous than needing to swap bindings after a season or two of progress.
The trade-off is that beginner bindings can pre-release (pop off unexpectedly) at higher speeds. Once you're comfortable on blue runs and skiing faster, that's your signal it's time to move to an intermediate binding.