AdaptOrch: Task-Adaptive Multi-Agent Orchestration in the Era of LLM Performance Convergence

· Source: cs.MA updates on arXiv.org · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Software Development & Engineering · Depth: Advanced, extended

Summary

AdaptOrch is a formal framework for task-adaptive multi-agent orchestration that dynamically selects optimal coordination topologies for large language models (LLMs). Developed by Geunbin Yu in February 2026, it addresses the diminishing returns of single-model selection as LLM performance converges across providers like GPT-4o, Claude 3.5 Sonnet, and Gemini 2.0. The framework introduces a Performance Convergence Scaling Law, a Topology Routing Algorithm that maps task dependency DAGs to one of four canonical topologies (parallel, sequential, hierarchical, hybrid) in $O(|V|+|E|)$ time, and an Adaptive Synthesis Protocol with provable termination guarantees. Validated across coding (SWE-bench), reasoning (GPQA), and retrieval-augmented generation tasks, AdaptOrch demonstrates 12–23% accuracy improvement over static single-topology baselines, even when using identical underlying models, establishing orchestration design as a primary optimization target.

Key takeaway

For AI Architects designing multi-agent LLM systems, focusing on dynamic orchestration topology is now more critical than selecting the "best" individual LLM. You should integrate task-adaptive routing mechanisms, like AdaptOrch's DAG-based approach, to automatically select between parallel, sequential, hierarchical, or hybrid execution patterns. This strategy can yield significant performance gains (12-23% accuracy) and cost efficiencies, especially for complex tasks with varied subtask dependencies, rather than relying on static orchestration or marginal model improvements.

Key insights

Orchestration topology, not individual model capability, dominates system performance as LLM capabilities converge.

Principles

Method

AdaptOrch decomposes tasks into DAGs, routes to one of four canonical topologies based on DAG properties, executes, and adaptively synthesizes results, re-routing if consistency fails.

In practice

Topics

Code references

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Editorial summary, takeaway, and curation by AIssential. Original article published by cs.MA updates on arXiv.org.