The AI-powered search tool o3 has received widespread acclaim for its advanced research capabilities and speed, surpassing traditional deep research methods. Users report that o3 delivers highly accurate and timely information, making it useful for both personal and professional inquiries. The tool's ability to recall full chat histories enhances its performance, drawing comparisons to artificial general intelligence (AGI). Several users noted that o3 effectively replaces conventional search engines like Google by providing niche product verification, promo code discovery, and related product research. Experts suggest that major companies such as Microsoft could benefit from integrating o3 into their search platforms to better compete in the market.