can low levels and high levels summon eachother?

[King Midas]

friend of mine is starting to play. im wondering if ill have to make a new character to coop with him or if he will be able to summon my current one. i heard you can summon high level friends with the password system but their health/damage gets reduced to your level

[lukaself]

I'm interested to know the answer to this question as well.

In previous games Co-op and PvP matchmaking was using a hermetic mix of several factors, like number of souls (rather than your level), highest gear upgrade level, special weapons you own and Covenant affiliation. So it's likely that this is not a simple answer to give in Elden Ring as well.

[brambo]

i believe there's no level requirement if you're using passwords, but the higher levelled player will be scaled down to match the lower levelled player