Spoiler for Surface Detail:

There is that battle where a single Culture ship absolutely destroys a GFCF fleet without breaking a sweat. The ship's Mind says they stood no chance because their AI didn't have autonomous authority over weapons systems and relied on accelerated crews for decisions.

What I love most is how the battle is explained to a human passenger over the course of several pages and at one point they have an exchange like:

   Mind: Now here comes my favorite bit.
   Human: What do you mean? This isn't live?
   Mind: Oh, no, the battle was over in fraction of a second. I'm showing you a slowmo replay.