Consistent Web Search and Fetch Across Every Model

OpenRouter introduces two server-side tools, openrouter:web_search and openrouter:web_fetch, that enable consistent and flexible web search and content fetching capabilities across various models without client-side implementation. These tools allow models to perform agentic searches and fetch full page content from URLs, offering a uniform experience regardless of the model or provider being used. Web Search supports multiple engines, including native, Exa, and Parallel, each with distinct features like configurable result context size and domain filtering, ensuring reliable search behavior across different models. Meanwhile, Web Fetch provides similar consistency with engines like Exa and Parallel, enabling content extraction and domain-specific fetching while maintaining a predictable cost and context usage. This approach marks a shift from the previous web search plugin, granting models greater autonomy in search operations and requiring a model that supports tool calling for implementation.

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