The new shopping capability further blurs the line between AI chatbots and search engines, signaling OpenAI's ambition to compete with Google in a market the latter has controlled for decades.

"Search has become one of our most popular and fastest growing features, with over 1 billion web searches just in the past week," the San Francisco-based company said in a post on X.

Rolled out on Monday, the update allows shoppers to find and compare items through natural conversation, then connect directly to merchants for purchases.

"Instead of scrolling through pages of results, you can simply start a conversation," OpenAI's post said, adding that users could also ask follow-up questions or compare products.

ChatGPT's shopping feature initially focuses on fashion, beauty, and home electronics categories. Product recommendations are personalized and come from the web, not advertisements, OpenAI said.

To counter increasing competition from AI chatbots, Google has integrated its own Gemini assistant into search results, providing AI-generated answers above traditional website links.

The rivalry intensified last week when an OpenAI executive testified the company would consider purchasing Chrome if Google were forced to sell the browser as part of an ongoing US antitrust case.