Google I/O 2026 was a two-hour AI barrage. Gemini 3.5 Flash, Search AI Mode, Project Astra in Workspace, and a fleet of coding agents. If you blinked, you missed half of it. Here is the practical breakdown — no fluff, just what ships, when it ships, and what it actually means for people building with it.
Gemini 3.5 Flash: Cheaper, Faster, Smarter(ish)
The headline upgrade. Gemini 3.5 Flash is Google's new everyday model — 40% cheaper than 3.0 Flash, 2x faster on long-context tasks, and the first Flash-tier model with genuine multimodal reasoning across text, images, audio, and video. It ships with a 1M-token context window and a new Mixture-of-Experts architecture that routes queries to specialized sub-models.
The practical takeaway: if you were using Gemini 2.5 Flash for cost-sensitive production workloads, 3.5 Flash is a drop-in upgrade. The pricing alone (roughly half the cost per million tokens) makes it the rational default for agent loops, batch inference, and retrieval-augmented generation pipelines.
Search AI Mode: The Browser Inside the Chat
