---
title: bu-30b-a3b-preview
canonical_url: "https://www.modelscope.cn/models/browser-use/bu-30b-a3b-preview"
md_url: "https://www.modelscope.cn/models/browser-use/bu-30b-a3b-preview.md"
repository: browser-use/bu-30b-a3b-preview
last_updated: 2026-04-04
pipeline_tag: image-text-to-text
tasks:
  - image-text-to-text
model_type:
  - qwen3_vl_moe
architectures:
  - Qwen3VLMoeForConditionalGeneration
base_model:
  - Qwen/Qwen3-VL-30B-A3B-Instruct
base_model_relation: finetune
parameters: 31.1B
tensor_type:
  - BF16
library_name:
  - safetensors
  - pytorch
frameworks:
  - pytorch
language:
  - en
downloads: 461
stars: 3
tags:
  - browser_use
---

# bu-30b-a3b-preview

> bu-30b-a3b-preview - browser-use 在 ModelScope 开源的模型。Meet BU-30B-A3B-Preview — bringing SoTA Browser Use capabilities in a small model that can be hosted on a single GPU.

browser-use/bu-30b-a3b-preview 是 ModelScope 魔搭社区上的 31.1B 参数image-text-to-text模型，基于 Qwen/Qwen3-VL-30B-A3B-Instruct 构建。

- **Repository**: browser-use/bu-30b-a3b-preview
- **Tasks**: image-text-to-text
- **Parameters**: 31.1B
- **Base model**: Qwen/Qwen3-VL-30B-A3B-Instruct
- **Tags**: browser_use
- **Downloads**: 461
- **Stars**: 3
- **Last updated**: 2026-04-04

Source: https://www.modelscope.cn/models/browser-use/bu-30b-a3b-preview

---

# BU-30B-A3B-Preview

<picture>
  <source media="(prefers-color-scheme: light)" srcset="https://github.com/user-attachments/assets/2ccdb752-22fb-41c7-8948-857fc1ad7e24"">
  <source media="(prefers-color-scheme: dark)" srcset="https://github.com/user-attachments/assets/774a46d5-27a0-490c-b7d0-e65fcbbfa358">
  <img alt="Shows a black Browser Use Logo in light color mode and a white one in dark color mode." src="https://github.com/user-attachments/assets/2ccdb752-22fb-41c7-8948-857fc1ad7e24"  width="full">
</picture>

Meet BU-30B-A3B-Preview — bringing SoTA Browser Use capabilities in a small model that can be hosted on a single GPU.

This model is heavily trained to be used with [browser-use OSS library](https://github.com/browser-use/browser-use) and provides comprehensive browsing capabilities with superior DOM understanding and visual reasoning.

## Quickstart (BU Cloud)

You can directly use this model at BU Cloud. Simply

1. Get your API key from [BU Cloud](https://cloud.browser-use.com/new-api-key?utm_source=hugging-face)
2. Set environment variable: export BROWSER_USE_API_KEY="your-key"
3. Install the browser-use library following the instructions [here](https://github.com/browser-use/browser-use) and run

```python
from dotenv import load_dotenv
from browser_use import Agent, ChatBrowserUse
load_dotenv()

llm = ChatBrowserUse(
	model='browser-use/bu-30b-a3b-preview',  # BU Open Source Model!!
)

agent = Agent(
	task='Find the number of stars of browser-use and stagehand. Tell me which one has more stars :)',
	llm=llm,
    flash_mode=True
)
agent.run_sync()
```

## Quickstart (vLLM)

We recommend using this model with [vLLM](https://github.com/vllm-project/vllm).

#### Installation

Make sure to install **vllm >= 0.12.0**:

```
pip install vllm --upgrade
```

#### Serve

A simple launch command is:

```bash
vllm serve browser-use/bu-30b-a3b-preview \
  --max-model-len 65536 \
  --host 0.0.0.0 \
  --port 8000
```

which will create an OpenAI compatible endpoint at localhost that you can use with.

```python
from dotenv import load_dotenv
from browser_use import Agent, ChatOpenAI
load_dotenv()

llm = ChatOpenAI(
    base_url='http://localhost:8000/v1',
    model='browser-use/bu-30b-a3b-preview',
    temperature=0.6,
    top_p=0.95,
    dont_force_structured_output=True, # speed up by disabling structured output
)

agent = Agent(
    task='Find the number of stars of browser-use and stagehand. Tell me which one has more stars :)',
    llm=llm,
)
agent.run_sync()
```

## Model Details

| Property | Value |
|----------|-------|
| **Base Model** | Qwen/Qwen3-VL-30B-A3B-Instruct |
| **Parameters** | 30B total, 3B active (MoE) |
| **Context Length** | 65,536 tokens |
| **Architecture** | Vision-Language Model (Mixture of Experts) |

## Links

- 🌐 [Browser Use Cloud](https://cloud.browser-use.com)
- 📚 [Documentation](https://docs.browser-use.com)
- 💻 [GitHub](https://github.com/browser-use/browser-use)
- 💬 [Discord](https://link.browser-use.com/discord)