Asana cleared 5 years of engineering work in 2 weeks with Codex

Asana leveraged OpenAI Codex to overhaul its legacy testing infrastructure in just two weeks, completing a migration that engineers originally projected would take five years. By automating the conversion of outdated code, the company reduced the cost of this technical debt to approximately $12,000. This project demonstrates how large language models can be applied to expedite large-scale internal engineering tasks that were previously considered prohibitively time-consuming.