Threepio reads so much like an LLM, the writing turns out to have been skockingly prescient. At the time of Phantom Menace, the whole story of him being assembled by some slave kid on a backwater planet in the outer rim seemed preposterous - why would a slave kid into pod racing make a pompous ass of a protocol droid? Well, he just installed a standard easily pirated LLM into the droid he made.

And the fact that these LLMs are used as 'protocol droids' to communicate with lower-level devices - 'the binary language of moisture vaporators' etc. - matches up with the pattern of LLMs as tools for generating scripts in Python.

Terrible though the last sequel is, they even managed to include jailbreaking Threepio to get him to access part of his training data that had been censored out.