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base_model, language, library_name, license, tags, pipeline_tag
base_model language library_name license tags pipeline_tag
Qwen/Qwen3-8B
en
transformers mit
LLM
text-generation

🔍 WebExplorer-8B

A state-of-the-art 8B parameter web agent model designed for complex information-seeking tasks and long-horizon reasoning.

🌟 Overview

WebExplorer-8B is an advanced web navigation agent trained on WebExplorer-QA. The model demonstrates exceptional performance on challenging information-seeking benchmarks while maintaining efficiency with only 8 billion parameters.

Key Features

  • 🌐 Long-horizon Reasoning: Supports up to 128K context length and 100 tool calling turns
  • 🛠️ Tool Utilization: Masters search and browse functionalities
  • 🏆 State-of-the-art Performance: Achieves best-in-class results among models under 10B parameters

🏗️ Model Architecture

Built on Qwen3-8B base model and trained through a two-phase approach:

  1. Supervised Fine-tuning (SFT): Cold-start initialization with high-quality trajectories
  2. Reinforcement Learning (RL): Enhanced using GRPO algorithm with progressive context expansion

📊 Performance

WebExplorer-8B achieves state-of-the-art performance across multiple information-seeking benchmarks:

Benchmark Score
BrowseComp-en 15.7
BrowseComp-zh 32.0
GAIA 50.0
WebWalkerQA 62.7
FRAMES 75.7
XBench-DeepSearch 53.7
HLE 17.3

🛠️ Tool Schema

WebExplorer-8B supports two tools for web interaction:

1. Browse Tool

{
    "name": "browse",
    "type": "function",
    "description": "Extract specific information from a webpage",
    "parameters": {
        "type": "object",
        "properties": {
            "url": {
                "type": "string",
                "description": "Target URL to browse. The webpage content will be processed by the LLM for information extraction."
            },
            "query": {
                "type": "string",
                "description": "Specific query about the webpage content. The LLM will analyze the content to answer this query."
            }
        },
        "required": ["url", "query"]
    }
}

2. Search Tool

{
    "name": "search",
    "type": "function",
    "description": "Perform web search queries",
    "parameters": {
        "type": "object",
        "properties": {
            "queries": {
                "type": "array",
                "items": {
                    "type": "string"
                },
                "description": "List of search queries. Returns search results containing title, URL, and snippet for each query."
            }
        },
        "required": ["queries"]
    }
}
Description
Model synced from source: hkust-nlp/WebExplorer-8B
Readme 2 MiB