OpenAI has started teasing a livestream today that will likely be related to its rumored web browser. A mysterious teaser with a set of browser tabs appeared on OpenAI’s X account today, signaling that a livestream will reveal all at 1PM ET / 10AM PT today.

Reuters reported in July that OpenAI was preparing to launch an AI web browser, with the company’s Operator AI agent built into the browser. Such a feature would allow Operator to book restaurant reservations, automatically fill out forms, and complete other browser actions.

OpenAI’s web browser is also expected to include a ChatGPT interface to allow people to interact directly with the chatbot through the browser instead of having to open the ChatGPT website. The browser is also likely to run on Chromium, the same engine that powers Chrome, Microsoft Edge, and Opera.

The AI browser wars are starting to heat up. Google has Gemini in Chrome, Perplexity has its Comet AI browser, The Browser Company got acquired by Atlassian for $610 million earlier this year, and Microsoft has been building an AI-powered Copilot Mode into its Edge browser. All of these browsers look like they’ll now have to compete with a dedicated product from OpenAI.

Microsoft, OpenAI’s strategic AI partner, has already ruled out creating its own dedicated AI browser. Microsoft AI CEO Mustafa Suleyman told me last month that Microsoft’s path to an AI browser involves evolving its Edge browser to “become a true agentic browser,” instead of an overhauled AI web browser like The Browser Company has tried to do with Dia.