system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman: TAS] Does Gordon know Bruce Wayne is Batman?
gpt
He *suspects*, especially in later storylines. But he doesn't 100% know. 

I would argue Gordon doesn't *want* to know. He needs plausible deniability, because Batman is much more *useful* to Gordon as a vigilante. 

If Gordon knew who Batman really was (or let himself know), his conscience might have required him to do something about Bruce's vigilantism. Worse, if *other people* found out that Gordon knew Batman's secret identity, Gordon would *really* be on the hook to do something about Bruce Wayne. 

So Gordon -- even if he suspected -- would never admit that to himself, never mind anyone else.