I/O 2026: Welcome to the agentic Gemini era

A new era of AI agents

Google I/O 2026 marked a pivotal moment in the history of artificial intelligence. Under the vast sky of the Shoreline Amphitheatre, Sundar Pichai took the stage to unveil what Google is calling the "agentic Gemini era" — a fundamental shift in how AI models don't just answer questions, but take action in the world on your behalf.

For years, AI has been reactive. You ask, it answers. You prompt, it responds. But starting today, Gemini 2.5 Ultra is designed to plan, reason, and execute multi-step tasks autonomously — booking travel, writing and sending emails, managing calendars, and even debugging code across entire codebases.

Project Astra and the ambient AI future

One of the most striking demonstrations was Project Astra's new capabilities. A pair of smart glasses streamed live video to Gemini, which could identify objects, read text, understand context, and respond in real time — all without a visible UI. Sundar described it as "the world becoming your interface."

The Astra glasses prototype, worn by a Google engineer on stage, navigated through a complex office, found a misplaced item, and then drafted a reminder note — all through natural voice conversation. The audience erupted.

Gemini 2.5 Ultra: The model behind it all

At the heart of the agentic era is Gemini 2.5 Ultra, Google's most capable model to date. Key upgrades include:

• 10 million token context window — enough to hold an entire codebase, years of email, or hundreds of research papers in a single conversation
• Deep Think mode — a reasoning layer that verifies its own outputs before responding, reducing hallucinations by 73% in internal benchmarks
• Native tool use — the model can call APIs, run code, browse the web, and manage files without plugins or add-ons
• Multimodal natively — video, audio, images, and text processed together with equal fluency

NotebookLM Plus and Workspace integration

NotebookLM — Google's AI research companion — received a major upgrade. NotebookLM Plus now connects directly to Google Drive, Gmail, and Calendar, enabling it to synthesize information across your entire digital life. Ask it "what do I need to prepare for my board meeting next week?" and it'll pull from your emails, documents, and calendar to give you a comprehensive briefing.

For Google Workspace users, this means a new Gemini sidebar that doesn't just help you write — it acts. "Reply to this email, schedule the follow-up, and update the project tracker" is now a single instruction.

Android XR: The spatial computing platform

Google's answer to the spatial computing wave is Android XR — a new operating system layer designed for augmented and extended reality devices. The first partner device, built with Samsung, ships later this year. Unlike Meta's approach, Android XR is designed as an ambient, always-on layer rather than an immersive replacement for reality.

The demo showed navigation overlays appearing on city streets, translation bubbles hovering over foreign-language signs, and Gemini appearing as a subtle HUD in the corner of your vision — ready to help but invisible unless you need it.

AI in healthcare: Early detection at scale

Perhaps the most emotionally resonant moment of the keynote was the announcement of Google's new partnership with major hospital networks to deploy Gemini for early cancer detection. Using medical imaging AI trained on 50 million anonymized scans, the model now identifies early-stage lung and breast cancer with 94.5% accuracy — surpassing the average radiologist in double-blind trials.

Sundar was visibly moved. "This is why we do this work," he said. "Not for the demos. For the moments when AI changes whether someone gets to see their children grow up."

What comes next

The pace of progress is breathtaking and, at times, disorienting. Google's I/O keynote didn't just announce products — it outlined a philosophy: AI should be deeply personal, proactively helpful, and present everywhere without being intrusive.

Whether that future arrives on schedule, and whether it arrives in the form Google envisions, remains to be seen. But one thing is clear: the agentic era isn't coming. It's already here.