The one to reach for when the writing has to read well or the code has to actually run. Claude keeps its footing across long documents and large codebases without losing the thread, produces prose that usually needs less editing than its rivals, and is more willing than most to admit it is unsure rather than invent a confident answer.
Artifacts turn a reply into a live document, diagram or small app you can edit beside the chat, and Projects hold the context for ongoing work. It leans toward considered output over sheer breadth of features, which is exactly the trade some people want. It is also the model family behind Claude Code, the tool that built this site.