Google has officially discontinued its experimental Project Mariner web-automation tool, migrating the technology into existing AI products like Gemini Agent and the company's AI-powered search features.

Key Points

• Google shut down Project Mariner on May 4, 2026, after launching the experimental feature in December 2024.
• The project’s agentic capabilities, which allowed for multi-step web tasks, have been integrated into Gemini Agent and AI Mode.
• Project Mariner previously enabled users to perform up to 10 simultaneous tasks, such as archiving emails or booking travel.
• The shutdown precedes Google’s I/O developer conference, which is scheduled to begin on May 19, 2026.
• Google’s move aligns with broader industry competition in agentic browsing from rivals like OpenAI and Perplexity.

Why it Matters

This consolidation reflects Google's strategy to streamline its fragmented AI experiments into core, consumer-facing products ahead of major product announcements. By folding these capabilities into Gemini, the company aims to better compete with emerging autonomous browsing tools currently offered by industry rivals.