1. At the start of the game my Demigod have 1000
gold, but bot have 4000
gold. Where the balance???
2. How the bot can have more level than me (when 1vs1), if the "flag of experience +20%" is mine?! HOW???!!! Where that fakin' balance I repeat?!
Well, so many years still we have no balance.
It has been like 5 years since I played, so I may be wrong, but the point of the balance mod was to balance the game in regards to multiplayer. In the base game, the AI is programmed to have various bonuses depending on difficulty level, this is common in strategy games where it is difficult to just make the AI better. Combine these two facts and you will see why the bot had an advantage over you regarding levels and money.
I doubt a mod was made to tone this down for the simple reason that playing with AI on normal should alleviate any problems you have, unless you also downloaded Enhanced AI v1.X which may give the AI bonuses even in normal (or they may just innately have bonuses, idk as it has been many years).
The reason mods only sought to buff AI instead of take anything away is because in a multiplayer match, if a player left and got replaced by an AI, 90% of the time they were screwed and the game was over there. This was made worse by the fact that as far as I remember, there was no reconnect option.
Anyway, to fix this issue, either put the AI down to normal (I am 90% sure difficulty didn't change anything other than their gold and exp gain) or try uninstalling Enhance AI.