We have lots of features specific to xcode, like:

- Auto fixing your file's issues
- Indexing and embedding your xcode project
- Swift-6 specific fixers
- Using multiple files as context, and auto creating files
- Claude 3.5/3.7 sonnet (which are much better than gpt at code and generating UI)
- Agent mode
- Git commit generation
- Github & Linear integrations
- Autocomplete (better than github copilot & xcode's)
- Cmd+K (inline, like cursor)
- And (soon) multi file apply.
 
These are things chatgpt doesn't have, and probably won't have for a long time. We're also a lot faster because we don't rewrite the full code, and we use cerebras' fast apply models (like cursor).