Gemini 3 delivers on many of Google’s bold promises, though not without some noticeable shortcomings. The flagship Gemini 3 Pro model shows meaningful improvements in reasoning, task execution, and interactive capabilities—especially in its Canvas workspace, where it handles complex, multi-source prompts involving text, images, and video. One of the most impressive tests was generating a 3D scale visualization of everything from subatomic particles to the galaxy. Gemini 3 produced a functional, interactive model that correctly ordered the items by size, though the visual quality fell short in some areas—DNA and beach ball models were dim and under-detailed compared to Google’s polished demos. When asked to recreate a voxel-art eagle on a tree branch, the output matched the general concept but lacked key details—no eyes on the eagle, and the trees had no trunks. Other 3D models like a penguin and turtle appeared overly simplistic, suggesting that while the model understands the idea, its rendering fidelity still has room to grow. Gemini 3 also introduces a new generative UI feature for Pro users, presenting responses in a magazine-style, interactive webpage layout. Testing it with a Rome trip itinerary, the model delivered a clean, customizable interface with options to adjust pace and dining preferences. It dynamically updated the plan based on input, making it useful for visualizing travel, building computers, or setting up aquariums. While not essential for everyday use, this feature adds a fresh layer of interactivity that could benefit certain workflows. The agentic capabilities under test in the Gemini Agent feature show promise. When asked to organize my Gmail inbox, Gemini 3 identified 99 unread emails, categorized them, and offered to set reminders for important ones like RSVPs and bills. It successfully added a payment reminder to Google Tasks and nearly completed a bill payment by navigating to the billing page—though it stopped short of entering payment details, likely due to security safeguards. This level of integration with Gmail is unmatched by competitors like Perplexity and ChatGPT, which either lack full access or operate in read-only mode. However, task completion isn’t flawless. Attempting to book a restaurant reservation, Gemini 3 confused users by mentioning a “cost” for booking, then backtracked to clarify it was referring to a service charge. It repeatedly asked for confirmation and raised financial concerns, making the process feel clunky and overly cautious. Despite these issues, Gemini 3 Pro excels in interactive visualizations and offers a richer, more integrated experience than previous versions. While it doesn’t yet match the polished demos in every detail, it’s clear that Google is pushing the boundaries of what AI assistants can do. For now, I’ll continue using Gemini as a reliable research tool—especially for complex queries—but I’ll rely on its visual and agentic features only when I need something beyond basic text answers.