Google is testing a redesign of its Search homepage in which “AI Mode,” the experimental AI-powered search feature the company rolled out earlier in May, replaces its longstanding “I’m Feeling Lucky” button under the Search bar.

A company spokesperson confirmed to The Verge, which was the first to report the change, that the feature began rolling out to some users in Google’s experimental Labs environment. However, it may not launch publicly.

The test comes just a week ahead of Google I/O, where the company is expected to announce some major updates to its AI-powered search offerings.

Google rarely makes changes to its Search homepage, but may now feel pressure to do so. An Apple executive testified in court last week that Google Searches on Safari declined for the first time last month, attributing the change to the rise of AI tools such as ChatGPT.