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OpenAI Says Codex Killed Asana's Enzyme Migration in Two Weeks for $12K, Against a Five-Year, $6M Plan
OpenAI's Asana case study claims four Codex agents working in parallel, each in its own copy of the codebase from a five-sentence prompt, removed Enzyme and completed a frontend test migration to React Testing Library in two calendar weeks and about 1.5 weeks of engineer time. Model and infrastructure cost was roughly $12K against a prior plan estimated at five years and about $6M, with one engineer checking progress twice a day and reviewing every change. The HN thread ran 62 comments against only 30 points, an unusually hostile ratio, with the central objection being that 'five years' was a never-prioritized backlog estimate rather than five years of actual work.
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