> For the complete documentation index, see [llms.txt](https://docs.redefine.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.redefine.dev/welcome-to-redefine/about.md). # About ## Welcome to Redefine 👋🏽 Redefine is a CI optimization platform that accelerates software development and cuts CI costs with just one click. ## Who can benefit from Redefine? 🧑🏽‍💻 Redefine is designed for developers looking to save time and money by running only the relevant tests based on their code change. ## What is Redefine?⏳ Redefine analyzes code changes, coding patterns, and test results to determine which tests are relevant for each testing cycle. This reduces the number of tests needed per testing run; allows you to detect bugs earlier; and to deploy updated, higher-quality code in a fraction of the time. ## How does Redefine work? 🧠 Redefine utilizes a machine learning (ML) model to optimize the CI process by selectively running tests based on their relevancy. The platform learns from code changes and test results to train a test selection model that predicts the most relevant tests for each new code change. For additional information, please refer to the [documentation page](/welcome-to-redefine/how-does-it-work.md).