Where to draw the determinism boundary in LLM pipelines

aronchick · x · 2026-09-26

In a thread on LLM pipeline architecture, the author argues every pipeline team must answer one question: "Where do we draw the determinism boundary?"

His heuristic: if an edge case requires a human to sort out, that's a great spot for an LLM to judge — but only to opine, not decide. He also notes the pattern repeats outside the hot path: the biggest LLM-assisted refactors quietly lean on deterministic tooling underneath. The judgment layer always floats on a deterministic substrate.

Related event: aronchick: The right question for LLM data pipelines is where to draw the determinism boundary(5 posts)→

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