This is my first post in GTPlanet in more than a decade! I've been trying to understand the AI's response to different difficulty settings on this race lately, and I feel like I'm left more confused than when I'd started.
I recently got back into GT7 after a fairly long hiatus, largely inspired to after lurking this thread and seeing the different setups everyone used to beat this race. Since I'd been out for a while, I set my game difficulty to Easy to get back in the rhythm of this race. I was already quite surprised by how quick the AI was in this race on Easy. I had learned from scrolling through this thread that the AI's performance in this race on lower difficulty levels did jump significantly since I last played the game, but something still felt off - particularly seeing the AI sporadically match times like 2:08.xxx touted by top tuners like Praiano and other users (who I assumed would be running this race on hard). I think I'd seen either in this thread or reddit someone mention that Easy to Hard had about a 10 second variation in finish times, with easy usually finishing around 27:35 and 27:25 - but I often found the AI finishing under 27:30 even on easy.
After about 25 runs beating the AI with CRB consistently I decided I was ready to try the race on a harder difficulty, so I switched the difficulty to Normal. But on this attempt, I was surprised to find the 2nd place AI log probably the slowest time I'd seen on this race ever (27:38.454). Wanting to understand more, I logged the times from my next 18 attempts of this race, consisting of 6 sets of attempts on different difficulty levels with the same cars/tunes. (I know I'm hardly the fastest in this race, please don't judge :3)
Here's the full data:
And here's a summary of the median and mean times:
I'm not an expert on how the AI works in this game by any means, but I feel like I'm seeing barely any difference in the AI's pace for this race at different difficulty settings - especially compared to other races of this length where the AI is more than a minute slower on easy than on hard. But I can't ignore how much more consistent the AI was on hard, with no attempts where the FD3S pit twice. It's almost like the AI on this event always operates on hard pace but still operates with weaker decision making skills at lower levels - leading to more variation and mistakes? I'd be really keen to hear from anyone else.