Mistral’s legacy-code project shows why AI agents still need testing and human review
In a case study published on 9 September, Mistral says it helped a European energy operator migrate 40,000 lines of Fortran 77 to C++. This was the first part of a 300,000-line system. The team checked numerical outputs against the original software, improved documentation and used structured agent workflows with human review. Fully autonomous attempts were less successful.
