01 / The short version
What happened
A team improved browser tooling for Managed Deep Agents by selecting Stagehand from Browserbase, then iterating on traces in LangSmith. Stagehand passed 90% of tasks at $1.98 each, versus Playwright MCP at 78% for $26.71. Key wins: a run tool that batches actions in one round trip, snapshot-based page reading that trims to an accessibility tree, and native Playwright-style code support.
See the exact references02 / Key takeaways
What you need to know
- 01
Stagehand outperformed Playwright MCP on cost and speed
- 02
Snapshot-based reading trimmed page access to compact text
- 03
Code mode batches actions instead of one-at-a-time calls
Keep in perspective
What to watch for
This evaluation was conducted by the same organization that publishes Stagehand; independent validation of these results is not provided.
Go to the source
Exact references
These are the original pages used for this brief. Publisher claims are not independent evaluations.
01Primary source · LangChainRead the original announcementhttps://www.langchain.com/blog/how-we-optimized-browser-use-for-deep-agentsAI-generated from the linked source. It can miss context; verify consequential details in the original. How the radar works