What the Diff vs Codex：怎么选？

What the Diff 是一款基于 AI 的代码审查与文件比对工具，能自动分析代码变更并生成清晰易懂的摘要说明。其核心功能包括：自动解读 Git 提交中的差异，用自然语言描述每次改动的目的和影响；支持跨文件对比，帮助开发者快速定位逻辑关联的变更点；还能识别潜在问题，如遗漏的异常处理或格式不一致，并给出改进建议。这款工具主要面向日常处理代码审查的开发者、技术负责人以及需要频繁协作的团队。适用于代码提交后的快速审查、合并请求的审核流程，以及回顾历史变更时理解复杂改动，能显著减少逐行阅读代码的时间，提升团队协作效率。

关于 Codex

“The recent Codex releases have been a step change. Codex PR reviews catch bugs our team would have missed, and we ship with more confidence because of it. Now we’re pulling the CLI and desktop app into more of our workflows—each release raises the bar.”

With Skills, Codex goes beyond writing code to directly contribute to the work that turns pull requests into products, like code understanding, prototyping, and documentation, aligned with your team’s standards.

“I needed to update another team’s codebase for a release. Codex handled the refactor and test generation, delivering fully tested code I handed back fast—keeping the feature on schedule without added risk.”