For myself I believe this is a reference to an automaton. Automata were known in the ancient world. A machine that intended to give the impression of being self instigated, self determined.
Regardless, I think there is a perfect response to the ‘AI could be sentient’ crowd-
Here is the pali with translation by Nanamoli
Vis xv111
675.Tasmā yathā dāruyantaṃ suññaṃ nijjīvaṃ
nirīhakaṃ, atha ca pana dārurajjukasamāyogavasena
gacchatipi tiṭṭhatipi.
31.Therefore, just as a marionette is void, soulless
and without curiosity, and while it walks and stands
merely through the combination of strings and wood,
Saīhakaṃ sabyāpāraṃ viya khāyati, evamidaṃ
nāmarūpampi suññaṃ nijjīvaṃ nirīhakaṃ, atha ca
pana aññamaññasamāyogavasena gacchatipi
tiṭṭhatipi.
yet it seems as if it had curiosity and interestedness,
so too, this mentality- materiality is void, soulless and
without curiosity, and while it walks and stands merely
through the combination of the two together, yet it
seems as if it had curiosity and interestedness
I think it might be some larger device. Maybe like a wooden elephant that you are inside of.
Another similar word in the same passage
[ dārurajjukasamāyoga+vasa ] [Dārujjuka+samāyoga] (pu) CL=8 The combination of wooden robots (and) ropes or band connected to a pulley or some other mechanical contrivance.
I think we can imagine something like this but more archaic in nature.