Although Blue Team seems to be lacking in the artificial intelligence department, new evidence suggests that the other team of Spartans in Halo 5: Guardians–Fireteam Osiris–may indeed be equipped with an AI. As for what this evidence is, and who this AI may be, the answer resides within a single shot of Halo 5‘s development:
As you can see, the VA/body actor for Holly Tanaka is holding a large box. That box is startlingly, bafflingly similar to TARS from Interstellar. The box’s angle is likewise at the same angle as this picture of TARS:
And that’s not all. If one looks at the spelling of Osiris, and how it compares with TARS, you’ll notice that both Osiris and TARS end with an S, and include an R. The connection here is undoubtable, but we will likely find out this Octrobrer.