Nvidia-backed Perplexity AI said on Wednesday it has launched Comet, a new web browser with AI-powered search capabilities, as the startup looks to challenge the dominance of market leader Alphabet's Google Chrome.

Comet extends Chromium with a set of Perplexity-powered AI features. The company’s namesake search engine is set as the default option for users. Additionally, a sidebar provides access to an AI assistant that can automate a wide range of browser actions.