# How OpenAI Uses Codex to Accelerate Engineering

DevFeed: [How OpenAI Uses Codex to Accelerate Engineering](<https://devfeed.tech/articles/how-openai-uses-codex-to-accelerate-engineering-84369.md>)

Original publisher: [Read original article](<https://openai.com/business/guides-and-resources/how-openai-uses-codex>)

Published: 2026-01-14T21:27:09Z

Content type: article

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [codex](<https://devfeed.tech/topics/codex.md>), [AI-enhanced product development](<https://devfeed.tech/topics/ai-enhanced-product-development.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [AI tools for developers](<https://devfeed.tech/topics/ai-tools-for-developers.md>), [engineering-leadership](<https://devfeed.tech/topics/engineering-leadership.md>)

Tags: [codex](<https://devfeed.tech/tags/codex.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [guides](<https://devfeed.tech/tags/guides.md>), [openai](<https://devfeed.tech/tags/openai.md>), [refactor](<https://devfeed.tech/tags/refactor.md>), [velocity](<https://devfeed.tech/tags/velocity.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

OpenAI teams use Codex to understand code, refactor systems, improve performance, and support engineering workflows. Examples include tracing request flows, splitting files into modules, converting database callbacks to async/await, finding caching opportunities, and generating tests.

## Source excerpt

A detailed look at how OpenAI teams use Codex to understand code, refactor systems, improve performance, boost velocity, and enhance engineering workflows.