Computer Use (Claude 3.5 Sonnet)Anthropic's API feature letting Claude control a desktop to automate on-screen tasks.

4.5 (6)

Reviewed by Daniel Nikulshyn·Updated July 2026

API Developer Tools AI Agents Automation Experimental Desktop Automation LLM

Overview

Computer Use is a capability available with Claude 3.5 Sonnet that allows the model to interact with a computer the way a person would. Through the Anthropic API, Claude can view screenshots, move a cursor, click buttons, type text, and navigate applications, enabling it to carry out multi-step tasks across software that lacks dedicated APIs. It is aimed at developers building agents for workflows such as form filling, data extraction, QA testing, and routine desktop automation. Because the feature is still maturing, Anthropic positions it as experimental and recommends running it in sandboxed virtual environments with human oversight.

Key features

Screenshot-based screen understanding
Mouse and keyboard control via API
Multi-step task planning and execution
Integration with Claude 3.5 Sonnet reasoning
Works inside virtual machines or containers
Tool-use framework for developers

Pricing

Model: Freemium
Category: Task automation
Rating: 4.5 / 5 (6)

Use cases

Automated form filling across legacy apps

Developers can build agents that read on-screen forms and input data into desktop or web applications that lack APIs, reducing manual data entry work.

GUI-based QA testing

Use Claude to navigate application interfaces, click through user flows, and verify expected behavior, enabling exploratory QA on software without scripted test hooks.

Cross-application data extraction

Agents can open multiple programs, capture screenshots, and pull structured data from dashboards or legacy systems into a unified output.

Routine desktop workflow automation

Automate repetitive multi-step tasks like report generation or file organization inside sandboxed VMs, with human oversight for safety.

Pros & Cons

Pros

Automates tasks across apps without custom integrations
Works with existing GUIs and legacy software
Backed by Claude 3.5 Sonnet's reasoning ability
Flexible API for building custom agents

Cons

Experimental and prone to errors on complex tasks
Slower than purpose-built automation scripts
Requires sandboxing for safety
Developer setup needed; not an end-user app

Reviews

4.5

Average from 6 ratings.

Beatriz Costa

Dec 5, 2025

Use it every day

Honestly didn't expect to like it this much. Mouse and keyboard control via API is exactly what I needed, and works with existing GUIs and legacy software. I do wish requires sandboxing for safety, but I reach for it almost every day now and it just clicks.

Leila Hassan

Nov 2, 2025

Use it every day

Honestly didn't expect to like it this much. Screenshot-based screen understanding is exactly what I needed, and backed by Claude 3.5 Sonnet's reasoning ability. but I reach for it almost every day now and it just clicks.

Pierre Dubois

Oct 14, 2025

Skeptical, then convinced

I went in skeptical — most tools in this space overpromise. It actually delivers on mouse and keyboard control via API, and flexible API for building custom agents caught me off guard. Developer setup needed; not an end-user app is why this isn't a perfect score, still, I'd recommend giving it a real trial.

Elena Rossi

Aug 21, 2025

Use it every day

Honestly didn't expect to like it this much. Screenshot-based screen understanding is exactly what I needed, and works with existing GUIs and legacy software. I do wish slower than purpose-built automation scripts, but I reach for it almost every day now and it just clicks.

Frank Müller

Jun 20, 2025

Compared a few options

Evaluated this against two competitors. Where it wins: multi-step task planning and execution and flexible API for building custom agents. Where it lags: slower than purpose-built automation scripts. On balance the feature set — especially tool-use framework for developers — justifies the 4 stars for our use case.

Victor Nguyen

Jun 1, 2025

Use it every day

Honestly didn't expect to like it this much. Screenshot-based screen understanding is exactly what I needed, and automates tasks across apps without custom integrations. I do wish requires sandboxing for safety, but I reach for it almost every day now and it just clicks.