I think the point the poster above was making is that it doesn't predict a phrase or anything like that - just the single next token. So all 10 or 1000 or whatever number of tokens you want are each individually candidates for the single next token, not a sequence of 10 or 100 next tokens. If you wanted to create multiple possible seuqneces, you'd then feed each of the 10 tokens to the network in the initial state, and extract the next token (or 10 next tokens) from that one, than revert back and feed another single one of the 10 tokens, etc.