I get that "indie" is often viewed as the 3rd option alongside AAA and AA but I don't think that's the right definition.
For me AAA and AA is about scope of the project. The 3rd option is "small", not "indie".
Hades (I don't know Hi-Fi Rush) is by all means a small game, regardless of how many developers worked on it. Same for Minecraft, or many of the games that other commentors posted.
You want a good measure? Check the price. AAA are $60, AA are around $40 and small games are below.
PS: out of topic but I just saw that Hades 2 is out in early access.
For me AAA and AA is about scope of the project. The 3rd option is "small", not "indie".
Hades (I don't know Hi-Fi Rush) is by all means a small game, regardless of how many developers worked on it. Same for Minecraft, or many of the games that other commentors posted.
You want a good measure? Check the price. AAA are $60, AA are around $40 and small games are below.
PS: out of topic but I just saw that Hades 2 is out in early access.