Documentation.AI vs Fern
| Documentation.AI | Fern | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $55/mo | Free |
| Open source | No | No |
| Platforms | api, Web | Web |
| Free plan | Yes | Yes |
| Paid from | 55 /mo | — |
| API spec support | Yes | — |
| Code repository sync | Yes | — |
| Automatic updates | Yes | — |
| Source types | Markdown, MDX, OpenAPI specifications, Git repositories, GitHub context repositories, Jira, Confluence, support tickets, user feedback | — |
| Output formats | Hosted documentation sites, API reference pages, PDF, Markdown/MDX, llms.txt | — |
| Hosting model | hosted | — |
Both are listed in Best AI Documentation Generators, Best Developer Documentation Software. On The Geeks Club, Fern scores higher on our published basis.