WebExplorer-8B/README.md

---
base_model:
- Qwen/Qwen3-8B
language:
- en
library_name: transformers
license: mit
tags:
- LLM
pipeline_tag: text-generation
---
# 🔍 WebExplorer-8B

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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

```json
{
    "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

```json
{
    "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"]
    }
}
```