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IBM Launches AI-Powered Z Atlas
October 27, 2026 · 1 source
IBM finally admits its flagship mainframes are overdue for a makeover and is turning to AI to pull it off. The company unveiled Z Atlas, an AI-driven tool built to automate the modernization of those legacy systems. Z Atlas scans existing code, suggests refactors and even generates compatible cloud-ready versions. IBM says the assistant can handle the most common workloads without rewriting a single line. The move follows years of customer pressure to keep mainframes relevant in a cloud-first world. Analysts note that AI could cut migration costs that have traditionally run into the millions. IBM plans to roll Z Atlas out to enterprise clients starting next quarter. If the tool lives up to expectations, it could reshape how businesses keep legacy code alive. IBM's chief architect summed it up, saying Z Atlas is 'the bridge between yesterday and tomorrow.'