Which Claude models support the browser use tool?

Anthropic's documentation lists the browser use tool as compatible with claude-fable-5, claude-mythos-5, claude-opus-5, claude-sonnet-5 and claude-opus-4-8. The docs also say it runs on the Claude API only, and is not available on Claude Platform on AWS, Amazon Bedrock, Google Cloud or Microsoft Foundry. Computer use is offered across a wider set of deployment options.

How is the browser use tool different from computer use?

Computer use drives a whole desktop through screenshots, mouse and keyboard. The browser use tool stays inside webpages and reads the page itself, so Claude can target an element by reference instead of by pixel position. Anthropic's docs say the browser tool is the closer fit for tasks that never leave the browser, and that both tools can be combined in one request.

Can Claude's computer use tool handle healthcare data?

Anthropic states that the updated computer use tool is now eligible for HIPAA-regulated workloads under its Business Associate Agreement. That makes it usable for agent workflows touching protected health information, as long as the customer has a BAA in place with Anthropic. The announcement does not extend that same eligibility statement to the new browser use tool.

How long do files uploaded to the Claude Files API last?

Files in the Claude Files API stay until you delete them, unless you set an expiry when uploading. The expires_in_seconds field takes a value between 3,600 seconds (one hour) and 7,776,000 seconds (90 days), and it cannot be changed afterwards. Each organization gets 1 TB of storage, with a 500 MB cap on any single file.

Anthropic · 2026-08-20 · major

Claude browser use tool — Anthropic's agent APIs are now generally available

Anthropic moved computer use, the Skills API and the Files API to general availability on the Claude Platform, and added a new browser use tool that reads page structure instead of guessing from pixels alone.

Anthropic announcement card for Claude computer use, the Skills API and the Files API

Anthropic's agent building blocks leave preview, joined by a browser tool that targets page elements instead of pixels.

Quick facts

Maker	Anthropic
What's new	Browser use tool
Now generally available	Computer use, Skills API, Files API
Browser tool surface	27 default member tools
File storage	1 TB per organization
Max file size	500 MB
Availability	Claude Platform, Microsoft Foundry

What is it?

A new browser use tool lets Claude read and act on a webpage directly, instead of working out where to click from a screenshot alone. Anthropic shipped it alongside general availability for three older agent building blocks on the Claude Platform: computer use, the Skills API and the Files API. The browser tool arrives with 27 default member tools covering navigation, clicking, typing, reading page text, forms and tabs.

How does it work?

The browser use tool mixes screenshots with page structure: Claude calls read_page or find to get element references, then aims at those references rather than pixel coordinates. Computer use can now return several actions in one response — click, then type, then screenshot — so a task finishes in fewer model calls. Skills are folders of instructions, scripts and templates that Claude loads only when a task needs them, and they run inside the code execution sandbox.

Why does it matter?

General availability is what lets teams put these agents in front of real users. Anthropic says the computer use tool is now eligible for HIPAA-regulated work under a Business Associate Agreement, which opens up healthcare workflows. Anthropic reports that its customer Asteroid cut its longest claims workflow from 32 minutes to 13, with cost per task down about 30% across every workflow.

Who is it for?

teams shipping production AI agents

Frequently asked questions

Which Claude models support the browser use tool?: Anthropic's documentation lists the browser use tool as compatible with claude-fable-5, claude-mythos-5, claude-opus-5, claude-sonnet-5 and claude-opus-4-8. The docs also say it runs on the Claude API only, and is not available on Claude Platform on AWS, Amazon Bedrock, Google Cloud or Microsoft Foundry. Computer use is offered across a wider set of deployment options.
How is the browser use tool different from computer use?: Computer use drives a whole desktop through screenshots, mouse and keyboard. The browser use tool stays inside webpages and reads the page itself, so Claude can target an element by reference instead of by pixel position. Anthropic's docs say the browser tool is the closer fit for tasks that never leave the browser, and that both tools can be combined in one request.
Can Claude's computer use tool handle healthcare data?: Anthropic states that the updated computer use tool is now eligible for HIPAA-regulated workloads under its Business Associate Agreement. That makes it usable for agent workflows touching protected health information, as long as the customer has a BAA in place with Anthropic. The announcement does not extend that same eligibility statement to the new browser use tool.
How long do files uploaded to the Claude Files API last?: Files in the Claude Files API stay until you delete them, unless you set an expiry when uploading. The expires_in_seconds field takes a value between 3,600 seconds (one hour) and 7,776,000 seconds (90 days), and it cannot be changed afterwards. Each organization gets 1 TB of storage, with a 500 MB cap on any single file.

Try it

Add a browser_toolset_20260801 entry to the tools array of a Messages request