Atom是开源的(到现在已经有几个小时了)，而Sublime Text不是。

我今天刚收到测试邀请，马上试用了亚当。GUI感觉像Sublime，是的，有一些捷径采用了Sublime。

除了上面提到的这些，我还发现了一些不同之处:

Vim mode is not as good as the Vintage mode on Sublime (which is not a fully featured vim either) because the vim package is in an early stage of development. See https://atom.io/packages/vim-mode for detail. As James mention, Atom is written using web tools, so you have access to the stylesheet of the text editor (styles.less) to do whatever appearance changes you want using CSS. There is also an option to change the startup CoffeeScript. Again, because Atom is still in the beta stage, Sublime has much more native plugin packages. However, since Atom is written in Node.js, the Atom official site said you can "choose from over 50 thousand in Node's package repository." (Because I am not a Node.js pro, I haven't look into this feature though) Atom has better Github support out of the box, but Sublime has a several Git packages. Sublime is a paid application unlimited evaluation period. Atom is free at the beta stage but we don't know whether Github wants to charge it or not.

因此，Atom是一个在测试阶段使用web技术构建的文本编辑器。相比之下，Sublime经历了许多不同的迭代。Atom仍然缺少很多Sublime支持的包，所以问题是Atom会赶上Sublime还是会变得更好?Github似乎对这个文本编辑器的未来很有信心，因为它的底层技术很受欢迎，从长远来看，Atom可能会是Sublime的一个很好的替代品。

Atom仍处于测试阶段(在我写这篇文章时是v0.123)，但它进展很快。比Sublime快多了。新版本每周发布一次，有时甚至在同一周发布几个版本。在它短暂的生命周期中，它比Sublime发布了更多的版本，后者需要几个月的时间来发布一个新功能或修复一个错误。以下是Atom自beta版发布以来所走过的道路的最新进展:

Sublime has better performance than Atom. Simply because it's written in C++. Atom on the other hand is a web based desktop app built on top of Chromium, and while they take performance close to heart, it will be really hard or even impossible to reach the same speed and responsiveness. Last July Atom began using React and it gave it a nice performance boost but you can still feel the difference. Apart from that, if Atom’s performance issues will not push users away - Sublime better speed up the release cycle, brush up its small UX tweaks, and consider letting in more contributors because this is where Atom is winning. Atom's package ecosystem is also growing really fast, it might not be as big as Sublime's at the moment but I have a feeling that with GitHub at it's back it will keep growing even faster. It probably has the majority of IDE like plug-ins you can think of. A major difference right now is that it can't handle files bigger than 2MB so it's something to keep in mind. The one thing you'll notice first is that the Sublime minimap is gone! Other than that, the first impression is that Atom looks almost the same as Sublime. I wrote a more in depth comparison about it in this blog post. No easy straightforward way to port your Sublime configurations, packages and such as far as I know.

另一个区别是Sublime文本是一个闭源项目，而Atom源代码是/将是公开可用的——尽管Github不打算将其作为一个真正的开源项目发布。他们想要提供对代码的访问权限，而不是向贡献者开放代码。

Github公开了代码:http://blog.atom.io/2014/05/06/atom-is-now-open-source.html

注意::

在Atom中，由于缓存系统的缺陷，在使用大文件时经常会发生数据丢失。

它已经被证明了无数次。

除了前面的回答之外，还有必要从开发过程中所做的选择的角度来澄清这两种产品之间的差异。

Sublime is binary compiled for the platform. Its core is written in C/C++ and a number of its features are implemented in Python, which is also the language used for extending it. Atom is written in Node.js/Coffeescript and runs under webkit, with Coffeescript being the extension language. Though similar in UI and UX, Sublime performs significantly better than Atom especially in "heavy lifting" like working with large files, complex SnR or plugins that do heavy processing on files/buffers. Though I expect improvements in Atom as it matures, design & platform choices limit performance.

The "closed" part of Sublime includes the API and UI. Apart from skins/themes and colourisers, the API currently makes it difficult to modify other aspects of the UI. For example, Sublime plugins can't interact with the sidebar, control or draw on the editing area (except in some limited ways eg. in the gutter) or manipulate the statusbar beyond basic text. Atom's "closed" part is unknown at the moment, but I get the sense it's smaller. Atom has a richer API (though poorly documented at present) with the design goal of allowing greater control of its UI. Being closely coupled with webkit offers numerous capabilities for UI feature enhancements not presently possible with Sublime. However, Sublime's extensions perform closer to native, so those that perform compute-intensive, highly repetitive or complex text manipulations in large buffers are feasible in Sublime.

Since more of Atom will be open, Github open-sourced Atom on May 6th. As a result it's likely that support and pace of development will be rapid. By contrast, Sublime's development has slowed significantly of late - but it's not dead. In particular there are a number of bugs, many quite trivial, that haven't been fixed by the developer. None are showstopping imo, but if you want something in rapid development with regular bugfixing and enhancements, Sublime will frustrate. That said, installable Atom packages for Windows and Linux are yet to be released and activity on the codebase seems to have cooled in the weeks before and since the announcement, according to Github's stats.

In terms of IDE functions, from a webdev perspective Atom will allow extensions to the point of approaching products like Webstorm, though none have appeared yet. It remains to be seen how Atom will perform with such "heavy" extensions, since the editor natively feels sluggish. Due to restrictions in the API and lack of underlying webkit, Sublime won't allow this level of UI customisation although the developer may extend the API to support such features in future. Again, Sublime's underlying performance allows for things that involve computational grunt; ST3's symbol indexing being an example that performs well even with big projects. And though Atom's UI is certainly modelled upon Sublime, some refinements are noticeably missing, such as Sublime's learning panels and tab-complete popups which weight the defaults in accordance with those you most use.

我认为这些产品是互补的。事实上，他们分享相似的视觉效果和按键只是增加了这一事实。在某些情况下，使用任何一种都有优势。目前，Sublime是一个成熟的产品，在所有三个平台上都具有相同的功能，并拥有丰富的插件集。Atom是新出生的孩子，他的五官会迅速长出来;它感觉还没有准备好生产，在性能方面有一些担忧。

[更新/编辑:2015年5月18日]

关于这两个编辑器自撰写上述文章以来的改进说明。

In addition to bugfixes and improvements to its core, Atom has experienced a rapid growth in third-party extensions, with autocomplete-plus becoming part of the standard Atom distribution. Extension quality varies widely and a particular irritation is the frequency by which unstable third party packages can crash the editor. Within the last year, Atom has moved to using React by way of shifting reflow/repaint activity to the GPU for performance reasons, significantly improving the responsiveness of the UI for typical editing actions (scrolling, cursor movement etc.). While this has markedly improved the feel of the editor, it still feels cumbersome for CPU intensive tasks as described above, and is still slow in startup. Apart from performance improvements, Atom feels significantly more stable across the board.

Development of Sublime has picked up again since Jan 2015, with bugfixes, some minor new features (tooltip API, build system improvements) and a major development in the form of a new yaml-based .sublime-syntax definition (to eventually replace the old xml .tmLanguage). Together with a custom regex engine which replaces Onigurama, the new system offers more potential for precise regex matching, is significantly faster (up to 4x) and can perform multiple matches in parallel. Apart from colouring syntax, Sublime uses these components for symbol indexing (goto definition etc.) and other language-aware features. In addition to further speeding up Sublime, particularly for large files, this feature should open up the potential for performant language-specific features such as code-refactoring etc.. Further 'big developments' are promised, though the author remains, as ever, tight lipped about them.