In the competitive arena of AI-powered search and browsing, speculation about an OpenAI web browser captivated tech markets throughout summer and fall 2025. What began as a straightforward yes-or-no prediction evolved into a high-stakes market tracking every signal from the ChatGPT maker.

The market opened on July 10, 2025, with the simple question: Would OpenAI release a browser before year's end? Initial odds of 42% reflected uncertainty—while OpenAI had demonstrated ambition with SearchGPT in 2024, building a full-fledged browser to compete with Chrome, Safari, and Edge seemed like a massive undertaking. Over 103 days, traders exchanged nearly $900,000 in volume as rumors, leaks, and industry whispers moved the market. On October 21, 2025, OpenAI confirmed the speculation by announcing Atlas Browser, an AI-native browsing experience that integrated ChatGPT into every aspect of web interaction.