OpenAI conducted an internal experiment where a 3-person engineer team used Codex AI agents to develop a million-line code product from scratch in 5 months. Humans focused solely on planning and defining rules, with no manual coding allowed. The AI handled all implementation.
Key Points
- 1.3 engineers, 5 months, million lines of code
- 2.No human-written code; AI-directed development
Impact Analysis
Highlights AI's potential to transform software engineering by automating coding, possibly reducing team sizes and accelerating development. It challenges traditional workflows and previews scalable AI-driven products.
Technical Details
Codex agents executed full development pipeline based on human-specified rules and goals. Resulted in a complete 'million-row code product' without manual intervention.


