You don't create an account upfront in Solomon. The account is created when Sol offers to save your conversation - which happens after around six messages.
What you need
A name (doesn't have to be your real one) and an email address. That's it. No password is set at this stage - Solomon uses a magic link login.
What an account gives you
Memory - Sol carries a growing picture of you across sessions
Conversation history - all your past conversations, accessible any time
Bookmarks - save Sol's responses for later
Journal - a private writing space
Signing in again
When you return to Solomon on a new device or after being signed out, enter your email address. Solomon will send a magic link. Click it and you're in.