Source record

Published by arXiv cs.MA (T1 source). The original is at https://arxiv.org/abs/2608.09155.

Pipeline notes

The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

The paper argues that model substitution in multi-call LLM workflows should be treated as a deployment-conditioned action rather than dictated by tier labels. It proposes a predicate-action factorization evaluated across solve-merge-verify workflows with 8-64 calls and multiple model ladders, showing that the same substitution has sharply different value depending on role and scale.

Challenges the default 'stronger model = better' routing heuristic in multi-call LLM systems by showing a model's value depends on its position in a dependent computation, not just its tier.

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