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arXiv

LAM resource-bounded abstraction formalizes LLM agent harness cost and validates communication and reliability predictions on GPT-6 Astra

The authors introduce the Language Model Agent Machine (LAM), a resource-bounded abstraction that fixes the underlying semantic model while explicitly charging harness-level resources, yielding four classes of results on communication, access, recomputation, and reliability, and testing communication and reliability predictions in controlled and held-out experiments on GPT-6 Astra, including checkpoint optima, policy selection under programmatic checking, and tradeoffs among call granularity, logical input traffic, and reliability on chained MATH tasks.