Introduction Mainframe operating systems, originating in the 1940s, remain essential to critical sectors such as finance and government. However, the vast legacy of COBOL code—estimated by IBM to be around 200 to 220 billion lines—needs to be migrated to modern platforms and rewritten in contemporary programming languages. This task is monumental, with the cost of … Continue reading Researchers at FPT Software AI Center Introduce XMainframe: A State-of-the-Art Large Language Model (LLM) Specialized for Mainframe Modernization to Address the $100B Legacy Code Modernization