Asana used OpenAI Codex to remove its outdated Enzyme testing system, completing work in two weeks that had been projected to take five years and cost about $6 million, for roughly $12,000.

Key Details

• Codex ran up to four coding agents in parallel, each in a separate copy of the codebase, from a five-sentence prompt.
• An engineer checked progress twice a day and reviewed every proposed change.
• Total engineering effort was about 1.5 weeks spread across two calendar weeks.
• Model and infrastructure costs totaled about $12,000, versus a roughly $6 million estimate for the previous staffing plan.

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