Large language model (LLM) agents have demonstrated remarkable capabilities in tool use, reasoning, and code generation, yet single-agent systems exhibit fundamental limitations when confronted with complex research tasks demanding multi-source synthesis, adversarial verification, and personalized delivery. We present DOVA (Deep Orchestrated Versatile Agent), a multi-agent platform introducing three key innovations: (1) deliberation-first orchestration, where explicit meta-reasoning precedes tool invocation, informed by a persistent user model and entity-aware conversation context; (2) hybrid collaborative reasoning, a composable three-phase pipeline unifying ensemble diversity, blackboard transparency, and iterative refinement; and (3) adaptive multi-tiered thinking, a six-level token-budget allocation scheme that reduces inference cost by 40-60% on simple tasks while preserving deep reasoning capacity. We formalize the core algorithms, present an architectural ablation study across seven system configurations, and analyze the contribution of each component to answer confidence, source coverage, and token efficiency.
Figures & tables
Figure 1: Layered architecture of Dova . Queries enter through the Interface Layer, pass through Orchestration (with deliberation), dispatch to specialized agents, which leverage collaborative reasoning and intelligence services.
Task Type
Tier
Max Tok.
Temp.
Classification
Basic
10K
0.0
Summarization
Basic
20K
0.3
Chat
Standard
40K
0.7
Code Gen.
Advanced
80K
0.2
Reasoning
Advanced
40K
0.7
Table 1: Model tier configuration.
Level
Budget
Typical Tasks
Off
0
Embeddings
Minimal
1,024
Classification
Low
4,096
Summarization
Medium
16,384
Code generation
High
32,768
Reasoning, research
XHigh
65,536
Complex analysis
Table 2: Thinking levels and token budgets ( 2 – 4× scaling per level).
Type
ArXiv
GitHub
HF
Web
Technical
✓
✓
✓
✓
News
✓
Biographical
✓
Factual
✓
✓
General
✓
✓
✓
✓
Table 3: Query type to source routing.
Interface
Access
Key Features
REST API
HTTP
15+ endpoints, OAuth2
CLI
Terminal
CoT display, sessions
Browser UI
Web
Source chips, badges
MCP Server
Stdio
5 tools, plugin arch.
Table 4: Interface modalities.
Configuration
Reasoning
Collab.
Think
Conf. ↑
Cov. ↑
Tok.Eff. ↑
Lat.(s) ↓
Dova -Full
✓
✓
Adaptive
0.82
0.90
0.71
12.4
− Collaboration
✓
—
Adaptive
0.68
0.65
0.74
6.1
− Thinking (fixed Med)
✓
✓
Fixed
0.79
0.88
0.48
11.8
− Memory
✓
✓
Adaptive
0.75
0.85
0.65
11.2
− Deliberation
✓
✓
Adaptive
0.77
0.90
0.52
14.8
− Self-Eval
✓
✓
Adaptive
0.70
0.88
0.69
10.1
Table 5: Architectural ablation study. Each row removes one component. Values represent expected relative performance based on architectural analysis. ↑ = higher is better; ↓ = lower is better. Bold indicates full-system values.
Mode
Agents
Conf.
Lat.
Tok.
Quick
1
0.52
1.8s
2K
Standard
1
0.68
6.5s
12K
Deep
N
0.78
18.3s
45K
Collaborative
N
0.82
24.1s
65K
Table 6: Reasoning mode comparison. Confidence and token consumption are averaged across a mixed workload of factual, technical, and evaluative queries.
Figure 2: Token consumption: adaptive vs. fixed Medium . Adaptive saves 94% on classification and 75% on summarization.
We present Verified Multi-Agent Orchestration (VMAO), a framework that coordinates specialized LLM-based agents through a verification-driven iterative loop. Given a complex query, our system decomposes it into a directed acyclic graph (DAG) of sub-questions, executes them through domain-specific agents in parallel, verifies result completeness via LLM-based evaluation, and adaptively replans to address gaps. The key contributions are: (1) dependency-aware parallel execution over a DAG of sub-questions with automatic context propagation, (2) verification-driven adaptive replanning that uses an LLM-based verifier as an orchestration-level coordination signal, and (3) configurable stop conditions that balance answer quality against resource usage. On 25 expert-curated market research queries, VMAO improves answer completeness from 3.1 to 4.2 and source quality from 2.6 to 4.1 (1-5 scale) compared to a single-agent baseline, demonstrating that orchestration-level verification is an effective mechanism for multi-agent quality assurance.
The DeepResearch Agent System is a large language model system engineered for deep information retrieval, multi-step reasoning, and autonomous research tasks. Built upon a sparse activation architecture with 30 billion total parameters of which only 3 billion are activated per token, the system achieves state-of-the-art performance on multiple agent search benchmarks while delivering 3.2 times faster inference compared to dense counterparts of equivalent scale. The system supports a 128K-token context window with hierarchical attention mechanisms that yield 18.7% accuracy and 23.4% recall improvements over standard long-context approaches. A dual-mode reasoning engine provides both a ReAct paradigm for basic multi-step problem solving and an IterResearch mode for high-performance iterative research with up to 20 reasoning steps, collectively delivering a 31.2% accuracy improvement over single-pass baselines. Multi-tool coordination integrates retrieval, computation, web search, and file parsing modules to achieve 92.1% tool-use accuracy. A reinforcement learning optimization framework based on the GRPO algorithm provides token-level policy gradients that improve training stability by 35% and accelerate convergence by 42%. An automated data synthesis pipeline with seed-based expansion achieves a 92.5% usability rate. Benchmark results include 87.3% on Humanity's Last Exam, 85.3% on BrowserComp Chinese, and 91.2% on WebWalkerQA. The system is fully open-sourced, including data synthesis, training, and inference code, and supports applications in academic research, business analysis, R&D support, and education.
Yong Huang, Yulu Huang, for the team Collaboration
LLM-based multi-agent systems (MAS) have emerged as a promising paradigm for enhancing complex reasoning through role specialization and collaboration, yet a key challenge remains: how can collaboration be adapted to a backbone's competence on the current query? This problem matters because more collaboration is not always better--richer coordination may help on difficult cases, but it also incurs additional token cost and redundant interactions. We propose a two-stage competence-aware framework for automatic MAS orchestration. It first models the LLM backbone's task-conditioned competence for the current query, and then uses this signal to adapt role activation and the communication graph. Across six benchmarks, our method achieves an average score of 93.81%. Experiments with six LLM backbones of varying competence levels further show that our method adjusts collaboration according to the inferred competence: for higher-competence backbones, it improves average accuracy from 87.22 to 89.97 while reducing token cost by 36.26%; for lower-competence backbones, it yields a further average gain of 4.58 points over existing methods. The same trend also holds on unseen backbones.