Project Mariner

Project Mariner
DeveloperGoogle DeepMind
Initial releaseDecember 11, 2024 (2024-12-11) (Research prototype)
Stable release
2025 Update / May 20, 2025; 12 months ago (2025-05-20)
EngineGemini 2.0 / Gemini 2.5
Operating systemWeb browser
PlatformGoogle Chrome, Cloud-based VM
TypeAI agent, Automation
LicenseProprietary (SaaS)
Websitedeepmind.google/models/project-mariner/

Project Mariner was a research prototype developed by Google DeepMind that explored human-agent interactions, particularly within web browsers. It automated tasks such as online shopping, information retrieval, and form-filling, aiming to enhance user productivity by delegating routine web-based tasks to an AI agent.[1]

Project Mariner operated as an experimental Chrome extension that understands the contents of your screen, including images, code, forms, and more. It could interpret complex goals, plan actionable steps, and navigate websites to carry out tasks, while keeping the user informed and allowing them to intervene at any time.[2][3]

As of May 2025, Project Mariner was available to Google AI Ultra subscribers in the US and was being integrated into the Gemini API and Vertex AI, allowing developers to build applications powered by the agent Google plans to bring Project Mariner’s capabilities to more countries and integrate it into Google Search's AI Mode, which was currently in the Search Labs testing phase.[4]

Project Mariner was discontinued on May 4, 2026.[5]

References

  1. ^ "Project Mariner". labs.google.com.
  2. ^ Zeff, Maxwell (May 20, 2025). "Google rolls out Project Mariner, its web-browsing AI agent".
  3. ^ "What is Google's Project Mariner? This AI agent can navigate the web for you". ZDNET.
  4. ^ Peters, Jay (May 20, 2025). "Google is bringing an 'Agent Mode' to the Gemini app". The Verge.
  5. ^ "Project Mariner". labs.google.com. Retrieved 6 May 2026.


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