Orchestra-o1: Omnimodal Agent Orchestration

TL;DR

Orchestra-o1 framework enhances multimodal agent collaboration, achieving 10.3% accuracy improvement on the OmniGAIA benchmark.

cs.AI 🔴 Advanced 2026-06-10 3 views
Fan Zhang Vireo Zhang Shengju Qian Haoxuan Li Hao Wu Jinyang Wu Donghao Zhou Zhihong Zhu Zheng Lian Xin Wang Pheng-Ann Heng
multimodal agent collaboration task decomposition reinforcement learning open-source tools

Key Findings

Methodology

Orchestra-o1 framework introduces decision-aligned group relative policy optimization (DA-GRPO) for efficient multimodal task decomposition and collaboration. It supports diverse model backends and toolsets, enabling parallel sub-task execution in complex tasks.

Key Results

  • Orchestra-o1 achieves a 10.3% accuracy improvement on the OmniGAIA benchmark, significantly outperforming Gemini-3-Pro.
  • Orchestra-o1-8B trained with DA-GRPO shows superior performance among open-source agents, increasing accuracy from 20.8% to 30%.
  • The framework's parallel design significantly reduces inference time and improves cost-effectiveness.

Significance

This research achieves breakthroughs in multimodal agent collaboration, addressing efficiency bottlenecks in existing frameworks and providing new solutions for academia and industry.

Technical Contribution

Orchestra-o1 framework achieves efficient task decomposition and execution through flexible agent backends and toolsets, introducing the new DA-GRPO reinforcement learning algorithm to enhance agent decision-making capabilities.

Novelty

First to achieve parallel sub-task execution for multimodal tasks, significantly improving task processing efficiency compared to existing methods.

Limitations

  • The framework may face computational resource bottlenecks when handling extremely complex multimodal tasks.
  • Further optimization of the toolset is needed to support more task types.

Future Work

Future research can explore the integration and optimization of more modalities and the potential applications of the framework in different fields.

AI Executive Summary

The Orchestra-o1 framework addresses efficiency bottlenecks in complex task processing through multimodal agent collaboration. Existing frameworks often struggle with efficiency in handling multimodal tasks, but Orchestra-o1 achieves efficient task decomposition and execution through flexible agent backends and toolsets. The framework employs decision-aligned group relative policy optimization (DA-GRPO) algorithm, significantly enhancing agent decision-making capabilities, achieving a 10.3% accuracy improvement on the OmniGAIA benchmark. Additionally, the framework's parallel design significantly reduces inference time and improves cost-effectiveness. Although the framework may face computational resource bottlenecks when handling extremely complex tasks, its breakthroughs in multimodal agent collaboration provide new directions for future research. Future research can explore the integration and optimization of more modalities and the potential applications of the framework in different fields.

Deep Analysis

Background

In recent years, multimodal intelligent systems have become a research hotspot, especially in the field of agent collaboration. Traditional single-modal systems cannot meet the needs of complex tasks, and researchers have begun to explore multimodal collaboration frameworks. Representative works include AutoGen and Gemini-3-Pro, but these systems are limited in efficiency when handling complex tasks.

Core Problem

Existing multimodal agent frameworks are inefficient in handling complex tasks, making it difficult to achieve efficient task decomposition and collaboration. Tasks often involve interactions among multiple modalities, which existing systems struggle to cope with.

Innovation

The Orchestra-o1 framework achieves efficient task decomposition and execution through flexible agent backends and toolsets. The framework employs parallel sub-task execution design, significantly improving task processing efficiency compared to existing methods.

Methodology

  • �� Introduce decision-aligned group relative policy optimization (DA-GRPO) algorithm to enhance agent decision-making capabilities.
  • �� Support diverse model backends and toolsets for efficient task decomposition and execution.
  • �� Employ parallel sub-task execution design to significantly reduce inference time.

Experiments

Experiments were conducted using the OmniGAIA benchmark to evaluate performance, comparing Orchestra-o1 with existing frameworks. Results show significant improvements in accuracy and inference time.

Results

Orchestra-o1 achieves a 10.3% accuracy improvement on the OmniGAIA benchmark, significantly outperforming Gemini-3-Pro. Orchestra-o1-8B trained with DA-GRPO shows superior performance among open-source agents, increasing accuracy from 20.8% to 30%.

Applications

The Orchestra-o1 framework can be used for multimodal collaboration in complex tasks, suitable for fields requiring efficient information processing, such as autonomous driving and intelligent customer service.

Limitations & Outlook

The framework may face computational resource bottlenecks when handling extremely complex multimodal tasks. Further optimization of the toolset is needed to support more task types.

Plain Language Accessible to non-experts

Imagine a kitchen where a chef needs to handle multiple ingredients simultaneously. Orchestra-o1 is like a smart chef assistant, helping the chef efficiently allocate tasks. It identifies which ingredients need priority handling and assigns tasks to the appropriate chefs. This makes the cooking process more efficient, and the dishes more delicious. The framework's parallel design is like having multiple chefs working simultaneously, significantly improving efficiency.

ELI14 Explained like you're 14

Imagine you're playing a multiplayer game where you need to complete tasks with your teammates. Orchestra-o1 is like the team captain in the game, helping you and your teammates allocate tasks. It identifies which tasks need to be completed first and assigns them to the appropriate teammates. This makes the game process smoother, and victory easier to achieve. The framework's parallel design is like having multiple teammates acting simultaneously, significantly improving efficiency.

Glossary

OmniGAIA benchmark

A benchmark used to evaluate the performance of multimodal agent frameworks.

Orchestra-o1 performs excellently on this benchmark.

Decision-aligned group relative policy optimization (DA-GRPO)

A reinforcement learning algorithm used to enhance agent decision-making capabilities.

Used to train Orchestra-o1-8B.

Multimodal

Involving multiple information modalities such as text, image, audio, and video.

Orchestra-o1 framework supports multimodal task processing.

Parallel sub-task execution

Simultaneously processing multiple sub-tasks to improve efficiency.

Orchestra-o1 framework employs parallel design.

Open-source toolset

A collection of tools supporting multimodal task processing.

Orchestra-o1 framework provides a unified tool ecosystem.

Open Questions Unanswered questions from this research

  • 1 How to further optimize the framework to support more modality tasks?
  • 2 How to solve computational resource bottlenecks when handling extremely complex tasks?

Applications

Immediate Applications

Autonomous Driving

Orchestra-o1 framework can be used to enhance the multimodal information processing efficiency of autonomous driving systems.

Long-term Vision

Intelligent Customer Service

The framework can be used to enhance the response speed and accuracy of intelligent customer service systems.

Abstract

The recent success of agent swarms has shifted the paradigm of large language model (LLM)-based agents from single-agent workflows to multi-agent systems, highlighting the importance of agent orchestration for task decomposition and collaboration. However, existing orchestration frameworks are limited to a narrow set of modalities and struggle to generalize to more complex settings where heterogeneous modalities coexist and interact. This limitation becomes particularly pronounced in omnimodal scenarios, where tasks require the unified understanding and coordination of diverse inputs such as text, image, audio, and video. In this work, we propose Orchestra-o1, an omnimodal agent orchestration framework designed to support efficient agent collaboration across multiple modalities. Orchestra-o1 introduces a unified orchestration mechanism that enables modality-aware task decomposition, online sub-agent specialization, and parallel sub-task execution. This scalable design allows agent systems to effectively tackle complex real-world tasks involving heterogeneous information sources, surpassing the second-best approach by 10.3% accuracy on the OmniGAIA benchmark. Furthermore, we introduce decision-aligned group relative policy optimization (DA-GRPO), an efficient agentic reinforcement learning approach for training Orchestra-o1-8B, which also achieves state-of-the-art performance against all existing open-source omnimodal agents.

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