Which model should I use?
- Claude Opus 4.6 (
claude-opus-4.6) — most capable. Use for the hardest tasks that need maximum accuracy. - Claude Sonnet 4.6 (
claude-sonnet-4.6, default) — best balance of capability and cost. Use for complex multi-step workflows. - GPT-5.4 mini (
gpt-5.4-mini) — fast and efficient. Good for simple, well-defined 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.
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.
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)