# OpenAI — Asana completed a years-long code migration in 2 weeks with Codex

- Company: OpenAI (openai.com)
- Announced: 2026-08-18T07:00:00+00:00
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://openai.com/index/asana
- Record: https://forck.live/items/13921-asana-completed-a-years-long-code-migration-in-2-weeks-with-codex
- Subject: GPT / ChatGPT / API

Asana used OpenAI Codex to remove the outdated testing system Enzyme from its frontend stack in about two weeks, a migration projected to take roughly five more years at its prior pace. Model and infrastructure costs totaled about $12,000, while Asana estimates the same scope through manual engineering would have represented roughly $6 million in fully loaded effort. The project involved up to four coding agents working in parallel from a five-sentence prompt, with an engineer checking progress twice a day and reviewing every proposed change.

## Evidence

Verbatim from https://openai.com/index/asana:

> Using OpenAI Codex, Asana replaced an outdated testing system in two weeks, with about $12K in model and infrastructure costs.

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Record: https://forck.live/items/13921-asana-completed-a-years-long-code-migration-in-2-weeks-with-codex
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