Long-form writing is one of the clearest places the two tools diverge in feel rather than raw capability: Claude’s output tends to need fewer passes to sound like a person wrote it.
| Feature | Claude | ChatGPT |
|---|---|---|
| Prose naturalness | Excellent | Good |
| Style customization | Good | Excellent (Custom GPTs) |
| Long-document consistency | Excellent | Good |
| Plan | Claude | ChatGPT |
|---|---|---|
| Paid plan | $20/mo | $20/mo |
