Greg Egan's works, mainly permutation City and Distress. These books go far beyond just LLMs and Greg Egan's novels really put the "hard" in hard sci-fi. But they describe a world where compute is extremely important. The first half of Permutation city especially covers this very well. Distress delves more into biotech and particle physics, but has its share of AI stuff. FWIW, Egan has a Twitter account and is mostly not that gung-ho about the current LLMs.
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