Asana replaced its outdated Enzyme testing system in just two calendar weeks using OpenAI Codex, a task previously estimated to take five years and cost $6 million. The migration was completed for approximately $12,000 in model and infrastructure costs.
- Asana utilized up to four parallel coding agents powered by frontier models to handle the large codebase changes.
- Engineers reviewed every proposed change twice daily to ensure quality while allowing the AI to execute the bulk of the work.
- The project reduced the estimated cost from $6 million to $12,000 and compressed a five-year timeline into 1.5 weeks of engineering effort.
The company states that this success changes which long-running software projects are considered practical to attempt, giving engineers more room to focus on craft.