| Price from | ¥9,000/mo | $49/mo |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 4 | 3 |
| Spec score · SEO Writing Software | 8.3 (#10) | 7.5 (#23) |
| Purpose | AI Writer is a service for owned-media teams that streamlines article production. | Byline combines keyword research, article generation, article scoring, and an editorial agent that rewrites flagged sections. |
| Support | The homepage says it offers manuals, video tutorials, and support; plan details list email and chat support. | Starter includes email support, Growth includes priority support, and Multi-Brand includes priority email and chat support. |
