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xAI Introduces Web Search and Collections Search Tools for Grok 4.6

xAI has released new Web Search and Collections Search tools, enabling its Grok 4.6 model to perform real-time internet searches and query uploaded knowledge bases.

By Illumora Editorial

Source · Sep 7, 2026, 10:28 PM · On Illumora · Sep 7, 2026, 10:58 PM

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Read the source →xAI Docs — Web Search | SpaceXAI Docs
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xAI has introduced new tool-calling capabilities for its Grok 4.6 model, including Web Search and Collections Search. These tools allow Grok 4.6 to extend its functionality beyond text generation by interacting with external data sources. The Web Search tool facilitates real-time internet searches and web page browsing, while the Collections Search tool enables querying of user-uploaded knowledge bases.

Key Points

  • The Web Search tool allows Grok 4.6 to search the internet and browse web pages for up-to-date information.
  • Users can specify allowed_domains or excluded_domains for Web Search, with a limit of five domains for each parameter.
  • Web Search also supports enable_image_understanding and enable_image_search for analyzing and embedding image search results.
  • The Collections Search tool enables Grok 4.6 to search through uploaded knowledge bases, referred to as collections.
  • Collections Search is designed for analyzing complex documents such as financial reports, legal contracts, or technical documentation.
  • Both Web Search and Collections Search are supported across various SDKs and APIs, including Python, JavaScript, and cURL, and are compatible with the Responses API.
  • Tool requests are priced based on token usage and tool invocations, with costs scaling based on the complexity of queries involving multiple tool calls.

Context

xAI's API supports tool calling, allowing Grok models to perform actions like searching the web, executing code, or querying user data, according to xAI Docs. These tools extend the API's capabilities, enabling the creation of interactive applications. The Web Search tool specifically allows Grok to access web pages and extract relevant information to answer queries with current content. The Collections Search tool is particularly valuable for document analysis workflows, enabling Grok to autonomously search and synthesize information from multiple documents within a knowledge base.

For Grok Business and Enterprise plans, team administrators manage connectors in the cloud console, controlling which external services Grok can access. This process involves adding connectors from a catalog or configuring custom MCP servers. Once provisioned, team members can connect their accounts to use these services. Adding and removing connectors requires Team Read-Write permissions, typically held by team admins.

Why It Matters

These new tools provide builders with expanded capabilities for integrating Grok 4.6 into applications that require real-time information retrieval or in-depth analysis of proprietary data. Understanding the specific parameters for Web Search and the application of Collections Search for complex document analysis can inform more effective prompt engineering and system design.

What To Do

  • Review the allowed_domains and excluded_domains parameters for Web Search to refine search scope.
  • Test the enable_image_understanding and enable_image_search options within Web Search for multimodal applications.
  • Explore the Collections Search tool for analyzing complex documents by uploading relevant knowledge bases.
  • Consult the pricing page to understand the cost implications of token usage and tool invocations for complex queries.
  • For Grok Business and Enterprise users, verify with team admins that necessary connectors are provisioned for these tools.

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