OpenAI’s browser is built atop Chromium, Google’s own open-source browser code, two of the sources said. Chromium is the source code for Google Chrome, as well as many competing browsers including Microsoft’s MSFT.O Edge and Opera OPRA.O.

A test of the app Dia illustrates that the humble web browser may be the path to making artificial intelligence more natural to use.

If OpenAI does start offering users access to its own browser, it would be following Perplexity, which released a browser with agentic AI functions on Wednesday. That browser, Comet, is currently only available to those with a $200 per month Perplexity Max subscription. Opera also released a "fully agentic" browser back in May.

On the HTML5 Test, which checks to see how compliant the Web browser is with the HTML5 Web page standard, Chrome 19 scored 402 out of a possible 500. The new Firefox 12 was way behind with 345 points.

If Chrome feels more like a chore than a choice, these Android browsers offer privacy, speed, and features people actually care about.

A new tool turns otherwise legitimate extensions for Chrome, Edge, and Firefox into bots that make your browser someone else's tool, and gets them paid in the process.

OpenAI will reportedly release its own web browser, putting it in position to challenge Google’s long dominance in web search.