OpenAI is giving free ChatGPT users limited access to its Deep Research tool without the need to pay for it. In addition, the company has expanded the tool's limits for all users by rolling out a lightweight version of it powered by its o4-mini model. It says the o4-mini Deep Research feature produces slightly shorter responses, but is "nearly as smart, more cost-efficient and delivers similarly high-quality results" as the original version. OpenAI previously released the tool for use by paying Pro, Plus, Team, Edu and Enterprise subscribers. But even they have a limited number of Deep Research queries per month.

On Wednesday, at the 2017 Google I/O developer conference in Mountain View, CA, Google CEO Sundar Pichai said that the company is rethinking all of its products with a renewed focus on machine learning and artificial intelligence (AI). One recent example of the company's use of machine learning is in Google Home, the company's smart speaker powered by Google Assistant, which uses deep learning to allow multiple users to share a single Google Home unit. Pichai also announced that the machine learning-driven Smart Reply feature is coming to Gmail on iOS and Android as well. One of the big announcements at I/O was Google Lens, a set of vision-based computing capabilities that seeks to understand what a user is looking at with their smartphone's camera, and help them take action based on that information. For example, a user can take a picture of a flower, and Lens will tell the user the kind of flower it is, Pichai said.