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LangChain adds browser use to Managed Deep Agents

2 articles2 sourcessince Oct 29Last article 1h ago ·

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LangChain says its Managed Deep Agents can now use a browser to take actions on sites that have no API, such as booking a reservation or testing an application end to end through its UI. Developers add a single define_browser export, and a browser_handoff tool lets a person take over to sign in before the agent resumes.

On 100 WebVoyager tasks, LangChain reports a 90% pass rate at $1.98 total cost, the highest of seven toolsets it tested. The browser stops after idle_ttl_seconds without activity, 10 minutes by default, so idle time is not billed.

Written by AI from the articles below · updated Oct 29, 11:23 AM ET

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Latest developmentOct 29, 11:09 AM ET
LangChain's managed Deep Agents can now use a browser

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The articles in this story. Times are ET.

Oct 29
  1. LangChainOfficial
    LangChain's managed Deep Agents can now use a browser

    AILangChain says its managed Deep Agents can now operate a browser to take actions on sites without an API, such as booking a reservation. The browser also lets an agent test an application end to end through its UI, and a user can take over to sign in before the agent resumes.

  2. LangChain BlogOfficialPick
    LangChain gives Managed Deep Agents a browser with handoff for sign-in

    AILangChain says Managed Deep Agents now lets agents use a browser for tasks such as booking reservations and end-to-end testing. Developers add one define_browser export, and a browser_handoff tool passes control to a person for sign-in. On 100 WebVoyager tasks, LangChain reports a 90% pass rate for $1.98 total, the highest of seven toolsets it tested.

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