we actualy the game cheats on tough i think but at a sertent point the game gives you a handeycap on the lower levels but as you progress in the difculty you lose that handeycape and the AI gets one and you get non.
No, and no.
You get a moderate economic bonus on sub-normal levels of play. From normal to tough, you get no bonuses and no penalties, but the AI functions at a slight penalty and does not use all human-countering tactics.
At Tough, the AI has no penalties and uses all of its code base (essentially) to counter you (as well as the other AIs, actually), but gets no bonuses and does not cheat.
Beyond Tough, all the way up to Suicidal, first the AI starts getting merely an economics bonus, and then this is expanded for the final three levels of difficulty into economics, research, industry, miniaturization, sensors, and if memory serves logistics as well (but I may be wrong on that final point). They are also not as limited as the human player is in their choices of customization points-for instance, theoretically they could pick +100% research, which doesn't normally exist, and more to the point even a custom race's 15 points couldn't cover it. My understanding is that they wouldn't be able to do much else with their points if they did this, even at the highest difficulty level-however, I have not yet felt like spending hours testing this. Especially as I'm currently spending hours testing something else.
Secondly, from Painful up to Suicidal, the human player gets a marginal to moderate bonus based on the difficulty level and the research bonus the player has (customization points, techs, rings around planets but only for that planet, as well as mining research resources) to their research output that is hidden and not actually displayed anywhere specifically, but the lab output shows it in the numbers.
It used to be my belief that those playing at Suicidal were not -really- playing at Suicidal because of this moderate bonus, but lately I've come to be somewhat more lax about it, and hope to one day feel comfortable enough using it to play frequently beyond Tough.
Thirdly, the AI does not cheat. There are some things in the coding that are borderline, but they are sufficiently dampened so that it is almost indistinguishable from a more complex coding method that would give effectively the same results without having the code look where it's not supposed to be able to look.
Fourthly: Artificial bonuses to the AI do not mean the AI is cheating. It is still playing by the rules of the game; it just has an advantage within the confines of those rules.