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Product Pricing

Explanation: Prices exclude applicable taxes. Specific tax obligations are subject to local tax regulations and will be calculated at checkout based on your jurisdiction. Web search and fetch capabilities are billed per call; each channel is independent and billed separately:
Failed requests, searches not triggered by the model, or empty results/content are not billed. When using web search via the Responses API or the Formula API, model input/output Tokens are still billed at the corresponding model pricing.

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Billing Details

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Web Search Basic / Web Search Pro

Calls to /v1/tools/search or /v1/tools/search_pro:
  • One call charge applies when the request succeeds (HTTP 200) and the search_results field in the response is non-empty (at least one search result is returned).
  • Requests that fail (invalid parameters, rate limiting, server errors, timeouts, etc.) or return no search results are not billed.
  • Web Search Pro additionally supports restricting results to specific sites via sites, constraining the result time range via time_window, and returns structured content snippets (chunks) for each result.
For endpoint parameters and usage examples, see Best Practices for Web Search.

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URL Fetch

Calls to /v1/tools/fetch:
  • One call charge applies when the request succeeds (HTTP 200) and the markdown field in the response is non-blank (page content was successfully extracted).
  • Requests that fail (invalid URL, security risk control, rate limiting, server errors, timeouts, etc.), pages with no extractable content (404 markdown_not_found), or empty fetched content are not billed.
For endpoint parameters and usage examples, see Best Practices for Web Search. Add {"type": "web_search"} to the tools array of POST /v1/responses:
  • The server evaluates the input to determine whether a search is required; if so, it executes the search and injects the results into the model context.
  • One call charge applies when the server executes a search (a web_search_call item is present in output); no charge applies if the model does not trigger a search.
  • Including image in search_content_types (image search) does not incur an additional charge.
See Responses API. On kimi-k3, each execution of the official web-search tool through the Formula API (POST /v1/formulas/{uri}/fibers) incurs one call charge. See How to Use Official Tools in Kimi API.