Asana cleared 5 years of engineering work in 2 weeks with Codex
Not a pilot. Asana cleared 5 years of engineering debt in 14 days—$12K, one AI model.

Why it matters
A real deployment case study showing how AI agents/models are collapsing timelines on legacy tech debt. Practitioners see a concrete ROI model; enthusiasts see AI's multiplicative effect on engineering productivity.
The key facts
9 to knowAsana replaced outdated testing system using OpenAI Codex
5 years of estimated engineering work completed in 2 weeks
Cost: ~$12K
Published Aug 2026 (case study/retrospective)
5 years of expected engineering work completed in 2 weeks
Cost: ~$12K (vs. expected multi-year team cost)
Use case: replacing outdated testing system
Tool: OpenAI Codex
Company: Asana
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: Asana used OpenAI Codex to replace an outdated testing system in two weeks, completing work expected to take five years for about $12K.