Best AI Agents for Google AI Ultra

The Gemini Deep Research Agent provides an intelligent, automated research workflow that behaves like an “analyst-in-a-box,” capable of planning, searching, reading, and synthesizing information across the public web and proprietary data sources. Using Gemini 3 Pro at its core, it navigates multi-step reasoning tasks and produces long-form, citation-backed reports that traditional LLM calls cannot match. Developers use asynchronous background execution to support research cycles that run for several minutes, with automatic polling and reconnect logic for reliability. Streaming mode offers real-time transparency, surfacing thought summaries and partial findings throughout the process. The agent is steerable through formatting instructions, allowing teams to generate technical reports, competitive analyses, or structured documents with precision. It also supports follow-up questions tied to prior interactions, enabling iterative refinement and deeper exploration. Designed with safety controls, it protects against harmful web content, prompt injection risks, and unintended data exposure. This makes it ideal for organizations seeking to automate sophisticated research workflows while maintaining operational control and trustworthiness.

Gemini Spark is an AI-powered personal automation agent developed by Google to help users manage digital workflows, automate repetitive tasks, and streamline productivity across connected applications and services. Built on Gemini 3.5 and powered by the Antigravity harness, Spark extends the capabilities of Gemini beyond question answering by acting as a proactive AI partner that can execute tasks and coordinate workflows under user supervision. The platform integrates with Google Workspace tools such as Gmail, Docs, Slides, and additional connected applications to automate information processing, task management, summarization, and workflow execution. Gemini Spark operates as a cloud-based AI agent that continues working in the background even when users close their laptops or mobile devices, enabling uninterrupted automation and ongoing task execution. Users can create recurring triggers, monitor inbox activity, generate summaries, extract deadlines, draft documents, and automate communication workflows through natural language instructions. The platform also supports skill training, allowing users to teach Spark how to handle specific recurring tasks and workflows tailored to personal or professional needs. Google is expanding Spark’s ecosystem through MCP integrations with services such as Canva, OpenTable, and Instacart, with additional partner integrations planned to support broader automation capabilities. Future features will include custom sub-agents, browser operation support, and the ability to interact with Spark through email and text messaging. Gemini Spark is designed with user oversight and security controls that require approval before high-stakes actions such as sending emails or making purchases are completed.

Project Mariner is an innovative research prototype created by Google DeepMind, utilizing their sophisticated AI model, Gemini 2.0. This project investigates the potential for enhanced human-agent interaction by automating a variety of tasks directly within a user's web browser. With its ability to understand multiple forms of information, Project Mariner can analyze and reason through diverse browser components, such as text, code snippets, images, and online forms. This functionality empowers it to adeptly navigate intricate websites, streamline repetitive workflows, and supply users with visual updates. The system is also capable of interpreting voice commands, providing real-time task progress updates and ensuring that users stay informed and maintain control over their activities. Furthermore, Project Mariner excels at deciphering complex instructions by deconstructing them into manageable steps, grasping the interconnections between different web elements, and delivering coherent plans and actions to users. Currently, the initiative is undergoing testing with a limited number of selected users, and those wishing to engage in future testing can express their interest by joining a waitlist. This approach not only fosters user engagement but also helps refine the system based on real-world feedback.

Gemini Agent is a powerful AI-driven assistant built to manage complex, multi-step tasks from start to finish. It intelligently plans actions and executes them using a combination of advanced technologies while ensuring users remain in control. Powered by Gemini 3, it utilizes deep research capabilities and live web browsing to gather accurate and relevant information in real time. The platform integrates smoothly with Google applications such as Gmail and Calendar, enabling users to streamline communication and scheduling. It can organize inboxes, generate draft responses, and automate repetitive tasks to improve productivity. Gemini Agent also performs detailed comparisons across websites, helping users make informed decisions when booking services or purchasing products. Its design prioritizes user oversight by requesting confirmation before completing sensitive actions. Users can pause, modify, or take control of any process at any moment. The system adapts to different workflows, making it suitable for both personal and professional environments. Ultimately, Gemini Agent enhances efficiency by reducing manual effort and simplifying everyday digital tasks.