I already use 1Password with min 20 characters, unless the site has a length limit >< I was more curious about extending the characters past alpha numeric / sp

I already use 1Password with min 20 characters, unless the site has a length limit >< I was more curious about extending the characters past alpha numeric / special characters, to include Chinese characters as well. That would open up the number of characters required to brute force and probably result in relying on a collision. Until technology catches up.