Google I/O 2025 was dedicated to AI. At its annual developer conference, Google announced updates that put more AI into Search, Gmail, and Chrome. Its AI models were updated to be better at making images, taking actions, and writing code.

Google’s Gemini Diffusion demo didn’t get much airtime at I/O, but its blazing speed—and potential for coding—has AI insiders speculating about a shift in the model wars.

Alphabet's Google kicks off its annual developer conference on Tuesday with a flurry of announcements showcasing its huge investment in artificial intelligence, while seeking to fend off concerns over the future of its business.

Last week, ahead of I/O, Google announced the Gemini 2.5 Pro Preview large language model with significantly improved coding abilities, and today the company announced that it’s updating the lighter-weight Gemini 2.5 Flash with stronger coding performance and complex reasoning capabilities.

Alphabet stock was sliding Tuesday afternoon as the Google I/O keynote announcements initially seemed to underwhelm investors. Alphabet shares dropped as the company shared AI news, with several of the AI updates announced scheduled to come in the weeks and months ahead.

Google wants to do more Googling for you in other places, too — thanks in large part to Project Mariner, Google’s tool that you can specifically instruct to do tasks on the web for you. It can now manage up to 10 simultaneous tasks.

I attended Google I/O 2025 in Mountain View, and had a blast trying out all the new AI tools. Here are the coolest things I saw!