And from the earth there will spring forth a terrible brood of beings, a brood of automata of an order of existence lying between the mineral and the plant kingdoms, and possessed of an overwhelming power of intellect.

This swarm will seize upon the earth, will spread over the earth like a network of ghastly, spider-like creatures, of an order lower than that of plant-existence, but possessed of overpowering wisdom. These spidery creatures will be all interlocked with one another, and in their outward movements they will imitate the thoughts that men have spun out of the shadowy intellect that has not allowed itself to be quickened by the new form of imaginative knowledge by Spiritual Science. All the thoughts that lack substance and reality will then be endowed with being.

The earth will be surrounded — as it is now with air and as it sometimes is with swarms of locusts — with a brood of terrible spider-like creatures, half-mineral, half-plant, interweaving with masterly intelligence, it is true, but with intensely evil intent. And in so far as man has not allowed his shadowy intellectual concepts to be quickened to life, his existence will be united not with the Beings who have been trying to descend since the last third of the nineteenth century [angels from higher spheres], but with this ghastly brood of half-mineral, half-plantlike creatures. He will have to live together with these spider-like creatures and to continue his cosmic existence within the order of evolution into which this brood will then enter.

~ Rudolf Steiner

https://rsarchive.org/Lectures/GA204/English/AP1987/19210513p02.html

Self-assembling robot swarms are already being developed at MIT and elsewhere. Once miniaturized and given their own CPU, memory, and wireless, they can become a form of distributed AI computing that gets more powerful the bigger the swarm. Also see:

https://sites.google.com/site/waldorfwatch/all-v-all

Steiner said the War of All Against All would happen around the end of the 20th century. We’re still on that trajectory with transhumanism, AI, and egotism on the upswing. But it’s also a sifting, with those who keep their inner light becoming the Noahs of this apocalypse.

What need not be forgotten is that in Steiner’s view everything of the material world is an expression of something spiritual. Therefore any type of AI super intelligence would be the material manifestation of a great evil spiritual being.

The AI technology in that respect would then only be a instrument by which a malevolent entity would have access to work upon the world. Just as our brains are a physical manifestation used by the spirit as a sort of keyboard.