Keywords AI

Google Project Mariner vs Multion

Compare Google Project Mariner and Multion side by side. Both are tools in the Browser Agents category.

Quick Comparison

	Google Project Mariner	Multion
Category	Browser Agents	Browser Agents
Pricing	—	Usage-based
Best For	—	Developers and businesses who want AI agents that can navigate and complete tasks on any website
Website	deepmind.google	multion.ai
Key Features	—	AI web browsing agent Natural language task execution Multi-tab browsing capability Vision-based page understanding API for automation
Use Cases	—	Autonomous web task completion Form filling and data entry Web research automation E-commerce automation Multi-site workflow automation

When to Choose Google Project Mariner vs Multion

Choose Multion if you need

Autonomous web task completion
Form filling and data entry
Web research automation

Pricing: Usage-based

How to Choose a Browser Agents Tool

Key criteria to evaluate when comparing Browser Agents solutions:

ReliabilityHow consistently the agent completes tasks without getting stuck or making errors.

Website compatibilityAbility to handle dynamic sites, SPAs, authentication, and CAPTCHAs.

Cloud infrastructureManaged browser infrastructure vs requiring your own browser instances.

Developer experienceQuality of APIs, SDKs, and debugging tools for building browser automation.

Security modelSandboxing, credential handling, and data isolation between sessions.

About Google Project Mariner

Google Project Mariner brings agentic browsing directly into Chrome, powered by Gemini. It can understand and interact with web pages — reading content, clicking buttons, filling forms, and navigating across sites. As a native Chrome feature for AI subscribers, Project Mariner represents the shift of browser agents from standalone tools to built-in browser capabilities, leveraging Google's unmatched understanding of web structure.

View Google Project Mariner profile →Visit website

About Multion

MultiOn builds AI agents that can autonomously use any website on behalf of users. Their browser agents can navigate complex web interfaces, fill out forms, complete purchases, manage accounts, and perform research across multiple websites. MultiOn provides both a consumer browser extension and an API for developers building web automation.

View Multion profile →Visit website

What is Browser Agents?

AI agents and infrastructure for autonomously navigating web browsers—clicking, typing, scraping, and completing multi-step web tasks for testing and automation.

Browse all Browser Agents tools →

Frequently Asked Questions

What is a browser agent?▾

A browser agent is an AI that can autonomously control a web browser — navigating pages, clicking buttons, filling forms, and extracting information. Unlike traditional scrapers, browser agents can handle dynamic websites and make decisions.

How reliable are browser agents?▾

Reliability varies by task complexity. Simple, well-defined tasks are highly reliable. Complex multi-step tasks across unfamiliar websites still have meaningful failure rates. The technology is improving rapidly.