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Can AI help solve the COBOL code crisis?

OpenAI claims its latest models show major progress migrating legacy COBOL into modern languages, but experts caution that rewriting code is not the same as replacing critical systems.

SourceThe Verge AIAuthor: Robert Hart
Can AI help solve the COBOL code crisis?
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Under the source content permission, this page provides an editorial summary, key points, and a link to the original article.

Key points and analysis

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Key points

  • OpenAI says GPT-6.1 Sol reached 87% behavior-preservation accuracy at low reasoning effort and 98% at higher reasoning.
  • COBOL still underpins over 40% of online banking systems, 80% of in-person card transactions, and 95% of ATM transactions.
  • Experts say the hard part is understanding and breaking up complex legacy systems, not just rewriting code.
  • Anthropic also pitched its Claude Code agent for COBOL modernization, without publishing performance benchmarks.

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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