AdaptEvolve: Improving Efficiency of Evolutionary AI Agents through Adaptive Model Selection

Fuente: arXiv
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Autori principali: Ray, Pretam, Brahma, Pratik Prabhanjan, Liu, Zicheng, Barsoum, Emad
Natura: Preprint
Pubblicazione: 2026
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author Ray, Pretam
Brahma, Pratik Prabhanjan
Liu, Zicheng
Barsoum, Emad
author_facet Ray, Pretam
Brahma, Pratik Prabhanjan
Liu, Zicheng
Barsoum, Emad
contents Evolutionary agentic systems intensify the trade-off between computational efficiency and reasoning capability by repeatedly invoking large language models (LLMs) during inference. This setting raises a central question: how can an agent dynamically select an LLM that is sufficiently capable for the current generation step while remaining computationally efficient? While model cascades offer a practical mechanism for balancing this trade-off, existing routing strategies typically rely on static heuristics or external controllers and do not explicitly account for model uncertainty. We introduce AdaptEvolve: Adaptive LLM Selection for Multi-LLM Evolutionary Refinement within an evolutionary sequential refinement framework that leverages intrinsic generation confidence to estimate real-time solvability. Empirical results show that confidence-driven selection yields a favourable Pareto frontier, reducing total inference cost by an average of 37.9% across benchmarks while retaining 97.5% of the upper-bound accuracy of static large-model baselines. Our code is available at https://github.com/raypretam/adaptive_llm_selection.
format Preprint
id arxiv_https___arxiv_org_abs_2602_11931
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle AdaptEvolve: Improving Efficiency of Evolutionary AI Agents through Adaptive Model Selection
Ray, Pretam
Brahma, Pratik Prabhanjan
Liu, Zicheng
Barsoum, Emad
Computation and Language
Artificial Intelligence
Evolutionary agentic systems intensify the trade-off between computational efficiency and reasoning capability by repeatedly invoking large language models (LLMs) during inference. This setting raises a central question: how can an agent dynamically select an LLM that is sufficiently capable for the current generation step while remaining computationally efficient? While model cascades offer a practical mechanism for balancing this trade-off, existing routing strategies typically rely on static heuristics or external controllers and do not explicitly account for model uncertainty. We introduce AdaptEvolve: Adaptive LLM Selection for Multi-LLM Evolutionary Refinement within an evolutionary sequential refinement framework that leverages intrinsic generation confidence to estimate real-time solvability. Empirical results show that confidence-driven selection yields a favourable Pareto frontier, reducing total inference cost by an average of 37.9% across benchmarks while retaining 97.5% of the upper-bound accuracy of static large-model baselines. Our code is available at https://github.com/raypretam/adaptive_llm_selection.
title AdaptEvolve: Improving Efficiency of Evolutionary AI Agents through Adaptive Model Selection
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2602.11931