The AI surrenders a too early now, it's a bit better if you play with locked teams. They won't run away so easily from fights though, so it's a bit schizophrenic behaviour. I kind of miss those times when they fought to the last construction frigate.

From my observation the AI tends to surrender rather quickly once you have beaten their main fleet. I think this is premature and I hope that they will include a "no AI surrenders" option like the one present in GalCiv 2.

The AI definitely surrenders too early now!

I was playing a free for all against 5 AI (FFA), a mix of hard and normal. I allied with a Hard AI, and was battling two normal AI on two fronts, when I discovered that two of the AI (one of the normal AI I was fighting and one hard AI on the far side of the system) had surrendered (or considered themselves defeated) -- broken glass in the diplomacy screen, no longer available for alliances, no longer allowed as a pirate target.  Each controlled multiple planets and had a small but respectable fleet, with multiple cap ships left.

The game went on as there were two other "live" AI's.  But both of the surrendered AI's could still have been factors had they not surrendered.  One had requested an alliance with me shortly before surrendering, and I was considering breaking my alliance with the Hard AI to team up against them with one of the weak normal AI's.  Although the "surrendered" AI's still had planets and ships and would fight if attacked, they stopped spending credits, building ships, etc., and could not form alliances any more.

Whatever the frustrations with the AI not surrendering until the last contruction frigate was dead when it was the last opponent in a game (and I never really minded it), it makes no sense for a live AI with planets and a fleet to surrender/die when the game is continuing with other AIs anyway, and it could fight on.  In Civ IV, an opponent continued until its last city was taken, and I would prefer that for the AI also (especially compared to the current premature surrender).  Having an AI surrender when the game is not over, is just frustrating and takes away options for the human player, and at least when the losing AI is not the last surviving AI in the game, should never happen.

When it is the last surviving AI, I would still prefer it to continue to fight all out unitl I destroyed its last planet, but at least there I can see that some others might disagree.  IMHO the cure is far, far worse than the original problem.

I think the current AI is just too easily depressed.  A major battlefield reversal, and it jumps off a bridge.  Maybe if it saw a counselor, and  took a few prozac, it could find a way to pull back, make a new plan, regroup its forces, promote a new admiral to lead its fleet, make a new alliance or two,  and not wreck the game.    

Yeah, I've started getting annoyed at the computer surrendering. I'll often do "keep playing" but they don't put up much of a fight afterwards.

It's just not very satisfying to "win by default" or what not. I want to crush their very souls.

Perhaps they could "fix" this by having the AI "surrender" but not be defeated, and as a player, you can choose whether or not to accept the surrender, or grind them into dust.

Yeah, the AI definitely surrenders too quickly in Entrenchment 1.01/Sins 1.15.

I dealt it a severe blow early on as I got two, maybe all of its capital ships while assaulting one of the AI border planets... but it still had several much better developed and defended planets, no other enemy than me and *zap* - it surrendered. For no apparent reason, I will still need to devote quite some resources to mob up the remains of the AI empire!

I hope they fix this soon.

I wonder if the dev's let the ai surrender sooner in order to "speed" up gametime.