> ## Documentation Index
> Fetch the complete documentation index at: https://browseruse-0aece648-magnus-concurrency-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Common questions and solutions.

## Which model should I use?

* **bu-ultra** — most capable. Use for the hardest tasks that need maximum accuracy.
* **bu-max** (default) — best balance of capability and cost. Use for complex multi-step workflows.
* **bu-mini** — faster, cheaper. Good for simple tasks.

## How do I get the live browser URL?

`live_url` is returned on session creation. Embed it in an iframe or open it in a browser.

```python theme={null}
session = await client.sessions.create(task="Go to example.com")
print(session.live_url)
```

## Getting blocked by a website

Stealth and proxies are active by default. If you're still getting blocked:

* **Use a profile** with logged-in cookies to bypass login walls.
* **Try a different proxy country** to match the target region.

If it still doesn't work, contact support inside the [Cloud Dashboard](https://cloud.browser-use.com) — send us a link to the page where you're getting blocked.

## Rate limited (429 errors)

The SDK auto-retries 429 responses with exponential backoff. If persistent, you may need more concurrent sessions — contact support.

## v2 vs v3 — which should I use?

**v3 is the recommendation for everything.** It's a premium agent (not available in open source) that is significantly more capable than v2:

* **Much better at complex tasks** and multi-step workflows
* **Much better at large data extraction**
* **File system** with persistent memory across tasks
* **Task scheduling** with 1,000+ integrations (Gmail, Slack, and more)

v2 is the closest to the open-source experience — pure browser automation, nothing else. If the open source already works great for your use case, v2 is the natural fit. For everything else, use v3.

```python theme={null}
# v3 (recommended)
from browser_use_sdk.v3 import AsyncBrowserUse

# v2 (simple browser-only tasks)
from browser_use_sdk.v2 import AsyncBrowserUse
```