500px deployed an upgraded AI search feature that allows users to find photos using plain-language descriptions rather than single keywords. The feature was introduced as part of a platform redesign in December 2023.

The feature is described in a December 2023 official 500px blog post as an 'upgraded AI search, empowered by advanced natural language processing.' Instead of typing isolated keywords, users can enter descriptive phrases such as 'friends on a scenic fall hike with their dog,' and the system returns relevant matching photographs. The company framed this as available to all users as part of the platform update.