Google has officially shut down its experimental feature Project Mariner on May 4, which was designed to help users automate various tasks on the Internet. As "Wired" magazine reporter Maxwell Zeff reported earlier, Project Mariner's official login page now displays a notice: "Thank you for using Project Mariner. The project was closed on May 4, 2026, and its technology has been transferred to other Google products."
Google first announced Project Mariner in December 2024 and later announced updates to it to enable it to perform up to 10 tasks simultaneously. Over the past year, Google has integrated Project Mariner-powered capabilities into other AI tools. These include Gemini Agent, an assistant that can archive emails on the user's behalf or assist with operations such as booking a hotel. Google is also integrating Project Mariner’s intelligent agent capabilities into its AI-powered search feature, AI Mode.
Earlier this year, Google showed off a new AI feature called Autobrowse that can perform multi-step tasks in the Chrome browser, such as researching flight prices. While Google hasn't made it clear whether the feature is powered by Project Mariner, it appears to be a response to smart web browsing tools offered by companies like OpenAI, Perplexity, and OpenClaw.
With the removal of Project Mariner, Google may be making room for other AI features that may be unveiled at this year’s I/O developer conference.
Google 2026 I/O Developer Conference will open on May 19.