AWS量化智能體交接稅

Computer Science > Artificial Intelligence arXiv:2608.

24358 (cs) [Submitted on 25 Aug 2026] Title:The Handoff Tax: Continuing Non-Native Trajectories in LLM Agents Authors:Roy Ganz, Mor Shpigel Nacson, Adi Kalyanpur, Ron Litman View a PDF of the paper titled The Handoff Tax: Continuing Non-Native Trajectories in LLM Agents, by Roy Ganz and 2 other authors View PDF HTML (experimental) Abstract:Coding agents perform long-running tasks spanning dozens of model calls, tool uses, and code edits.

As these runs unfold, users face a practical cost-quality trade-off: escalating to a stronger model when a cheaper one struggles, or downshifting once the hard reasoning is complete.Each switch requires the receiver to continue a non-native trajectory produced by another model.

We study how this handoff affects quality and cost, and how varying the trajectory information inherited by the receiver changes the outcome.

Using pairs of low-cost, low-capability (LC) and high-cost, high-capability (HC) models from the Claude and GPT families, we vary handoff direction, timing, and interface, comparing full-trajectory transfer, compaction, and trajectory removal while preserving the repository state.

Across both model families, full-trajectory escalation recovers less than half of the LC-to-HC quality gap while incurring a substantial cost premium.We term this cost-quality penalty the handoff tax.By contrast, downshift offers a favorable cost-quality point.

Interestingly, the preferred interface also reverses with direction: reducing LC-model trajectory information improves escalation quality, whereas removing the HC-model trajectory reduces downshift quality.Subjects: Artificial Intelligence (cs.AI) Cite as: arXiv:2608.24358 [cs.AI] (or arXiv:2608.

24358v1 [cs.AI] for this version) https://doi.org/10.48550/arXiv.2608.

24358 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Roy Ganz [view email] [v1] Tue, 25 Aug 2026 10:14:30 UTC (389 KB) Full-text links: Access Paper: View a PDF of the paper titled The Handoff Tax: Continuing Non-Native Trajectories in LLM Agents, by Roy Ganz and 2 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: cs.

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