browser-use-tool changedagents-and-tools/tool-use/browser-use-tool
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2020 - claude-haiku-5-5
2121 supportedPlatforms:
2222 Claude API: ga
23 Claude Platform on AWS: not available
24 Amazon Bedrock: not available
2523 Google Cloud: ga
26 Microsoft Foundry: not available
2724---
2825
2926The browser use tool lets Claude navigate, read, and interact with webpages in a browser that your application runs. Claude works with the page both through its structure (the accessibility tree, elements, forms, and tabs) and through screenshots and viewport coordinates.
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15711568Browser use follows the standard [tool use pricing](https://platform.claude.com/docs/en/agents-and-tools/tool-use/overview#pricing). When using the browser use tool:
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1573**Toolset definition overhead:** Declaring `browser_toolset_20260801` with its default members adds about 6,600 input tokens to a request (about 6,610 on Claude Fable 5, Claude Mythos 5, Claude Opus 5, and Claude Opus 4.8, and about 6,670 on Claude Sonnet 5), which covers the member tool definitions and the tool use system prompt. Enabling all four optional members adds about 880 tokens, and disabling members with `configs` reduces the count. The exact count for a request is reported in the response `usage`, and you can estimate it in advance with the [token counting endpoint](https://platform.claude.com/docs/en/build-with-claude/token-counting).
1570**Toolset definition overhead:** Declaring `browser_toolset_20260801` with its default members adds about 6,600 input tokens to a request (about 6,670 on Claude Sonnet 5 and about 6,610 on the other supported models), which covers the member tool definitions and the tool use system prompt. Enabling all four optional members adds about 880 tokens, and disabling members with `configs` reduces the count. The exact count for a request is reported in the response `usage`, and you can estimate it in advance with the [token counting endpoint](https://platform.claude.com/docs/en/build-with-claude/token-counting).
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15751572**Additional token consumption:**
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