Fei

In plain words

Fei is an AI-powered coding tool designed for development teams building production software. It integrates directly into existing codebases, uses a project's components, and adheres to established design systems and coding standards. Fei generates production-ready code while maintaining consistency with a team's technical requirements and conventions.

written from the facts on this page · September 2026

From the sources

Introducing Fei. The production grade, vibe coding, autonomous engineer. Designed for teams that build real products. Fei works in your codebase, uses your components, maintains design system and coding standards, delivering real, production grade code.

Quick fixes die in Slack threads because the process around them costs more than the fix. Now you can @mention Fei and the task starts right there. Your engineers still review and merge.

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