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Rakuten Halves Software Fix Times, Boosts Delivery with OpenAI's AI Coding Assistant
OpenAI Blog March 11, 2026
Rakuten has leveraged OpenAI's Codex to dramatically accelerate its software development, cutting Mean Time To Resolution (MTTR) by a remarkable 50%. This significant operational efficiency gain allows the e-commerce giant to ship software faster and more securely, showcasing how AI-powered coding tools directly translate into tangible business benefits like reduced costs and increased speed to market.
Key Intelligence
- •**Slashed Resolution Times**: Rakuten reduced its Mean Time To Resolution (MTTR) by an impressive 50% through the strategic use of OpenAI's Codex.
- •**Accelerated Software Shipping**: The AI assistant enables Rakuten to deliver software faster and with enhanced safety and reliability.
- •**Automated Development Pipeline**: Codex automates crucial CI/CD (Continuous Integration/Continuous Delivery) review processes, streamlining their engineering workflow.
- •**Rapid Full-Stack Builds**: The company is now capable of delivering complex full-stack software builds in weeks, significantly accelerating project completion.
- •**Tangible Efficiency Gains**: This implementation by a major e-commerce player demonstrates AI's direct, measurable impact on core engineering operations, boosting productivity and cutting operational costs.
- •**Blueprint for Enterprise AI**: Rakuten's success provides a real-world case study for other enterprises looking to integrate AI into their software development lifecycle for competitive advantage.