RedPen vs Revise
RedPen
redpen.cc
Revise
revise.ioSide by side
| Figure | RedPen | Revise |
|---|---|---|
| Price from | — | $8/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 4 |
| Spec score · Writing Style Checkers | 7.0 (#27) | 8.7 (#3) |
| Document formats | It validates markup text including Markdown, Textile, AsciiDoc, reStructuredText, and LaTeX. | The editor imports DOCX, PDF, Markdown, HTML, plain text and image files, and exports DOCX, PDF, HTML, Markdown and plain text. |
| Integrations | The project lists integrations or packages for Atom, Emacs, Vim, WordPress, IntelliJ IDEA, Sublime Text, and Visual Studio Code. | Revise offers ChatGPT and Claude plugins that use the customer's subscriptions, and its SDK supports connecting an external agent through MCP. |
| Support | The project lists documentation, a mailing list, and English and Japanese chat rooms for support. | The Max plan includes priority support. |
Plans
In their own words
Revise
Revise is a browser-based AI document editor and word processor, offered through web, API, and self-hosted options. Its AI agent can brainstorm, draft, edit, rewrite, and search the web for citations, presenting proposed changes for review. AI edits appear as tracked changes that users can accept or reject individually. The editor supports DOCX, PDF, Markdown, and text files, with export to DOCX, PDF, and Markdown. Revise supports models from OpenAI, Anthropic, Google, and xAI, plus real-time collaboration and focused document comment threads. ChatGPT and Claude plugins use the customer’s subscriptions, while an SDK connects external agents through MCP. Documents and AI conversations are described as private by default, encrypted in transit and at rest, and deletable by the user. The Free plan costs $0 per month and includes a daily AI limit. Plus costs $8 per month, Pro $20 per month, and Max $80 per month. The API is billed per request, with 18 MiB uploads and PDFs up to 100 pages.