Agent S

Open agentic framework that uses your computer's GUI the way a human would.

Open Source Automation & Agents
Visit Website ↗ by Simular

What is Agent S?

Agent S from Simular is an open framework for agents that perceive and operate graphical interfaces like a person. It combines GUI grounding with planning to click, type, and navigate real applications. A leading open research project in computer-use agents with 12.5k stars.

Key features

  • GUI grounding — sees and clicks interfaces
  • Planning layer for multi-step computer tasks
  • Human-like computer interaction
  • Open research codebase under Apache 2.0

Pros

  • True computer-use capability, open sourced
  • Strong research pedigree from Simular
  • 12.5k+ stars

Cons

  • Research-grade — expect rough edges
  • GUI agents are slow and brittle by nature
  • Needs capable vision models, which cost money

Agent S at a glance

PricingOpen Source
CategoryAutomation & Agents
Platformswindows, macos, linux
CompanySimular
Official websitegithub.com
computer-usegui-agentframeworksimularautomation

How to choose the right Automation & Agents tool

Automation and agent tools promise to do work for you, so judge them on reliability before cleverness. Map the exact workflow you want to automate, then check the tool's integrations cover every app in that chain — one missing connector breaks the whole flow. Look for clear triggers, sensible limits, and logs you can read when something goes wrong, because something eventually will. For agents that act on your behalf, approval controls matter: you should be able to review messages, purchases or changes before they happen, especially at the start. Pricing usually scales with runs or tasks, so estimate your monthly volume honestly. Start with one low-risk workflow, measure the time it truly saves, and expand from there.

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Agent S FAQs

What is Agent S?

Agent S from Simular is an open framework for agents that perceive and operate graphical interfaces like a person. It combines GUI grounding with planning to click, type, and navigate real applications. A leading open research project in computer-use agents with 12.5k stars.

What are the main features of Agent S?

Agent S offers GUI grounding — sees and clicks interfaces, Planning layer for multi-step computer tasks, Human-like computer interaction and Open research codebase under Apache 2.0.

How much does Agent S cost?

Agent S is open source, so the software itself is free to download, use and self-host. Your only costs are the infrastructure you run it on and any paid services you connect to it.

What are the pros and cons of Agent S?

Strengths of Agent S include True computer-use capability, open sourced; Strong research pedigree from Simular; 12.5k+ stars. On the downside, Research-grade — expect rough edges; GUI agents are slow and brittle by nature; Needs capable vision models, which cost money.