ghostwriter-ai
Microsoft Office add-ins for AI-assisted drafting, editing, email, data analysis, and presentation content.
About ghostwriter-ai
ghostwriter-ai provides AI-assisted writing and analysis in Microsoft Office through separate add-ins for Word, Outlook, Excel, and PowerPoint. Word editions cover writing styles, tones, creative settings, response length, and progressively richer tools such as Quick Action prompts, agents or personas, translation, prompt writing, and inline editing. Excel can analyze a selected data table and generate sample data; Outlook supports drafting and responding to email; PowerPoint produces concise, bulleted material for presentations. The Office Bundle combines four add-ins, while Author and Legal editions adapt Word workflows to publishing and legal work. Purchases use a single-user product key and are sold for a one-time price. Users can add their own API key to access models from OpenAI, Google Gemini, and xAI Grok. Compatibility covers Office 2021, Microsoft 365, and Office 365 on Windows, Mac, the web, and iPad.
Best for
Best use cases
Draft and revise content directly in Microsoft Word
Analyze selected Excel table data or prepare concise PowerPoint points
Compose and respond to Outlook email with configurable writing controls
Compare before choosing
Individual add-ins cost less when only one Office application is needed
The $200.00 USD Office Bundle covers Word PRO, Excel, Outlook, and PowerPoint
Author and Legal editions exchange general-purpose breadth for profession-specific roles and document types
Features
Draft and revise Word documents
Generate or revise text in Microsoft Word with selectable writing styles, tones, response length, and creative settings.
Work across Office applications
Use dedicated add-ins for Word, Outlook, Excel, and PowerPoint, or buy the bundle that covers all four applications.
Use specialized writing workflows
Choose Author or Legal editions for publishing-oriented roles and genres or attorney roles and legal document types.
Pros
- One-time purchase pricing avoids a recurring software subscription fee.
- Dedicated add-ins keep drafting and analysis inside familiar Microsoft Office applications.
- Windows, Mac, web, and iPad support gives users several ways to access the same Office workflow.
Cons
- Each license uses a single-user product key, which limits sharing across a team.
- Users must supply their own API key, adding separate provider setup and usage costs.
- Choosing among separate app, bundle, and specialist editions requires matching the license to a specific workflow.
Pricing Plans
Word Basic
- Writing styles and tones
- Creative setting and response length
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Word PRO
- Quick Action prompts
- 50 agents/personas
- Language translation
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Word Ultimate
- Quick Action prompts
- 100 agents/personas
- AI Prompt Writer and inline editing
- Latest reasoning models
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Outlook
- Quick Action prompts and personas
- Writing styles, tones, and translation
- Azure Cognitive Services available
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Office Bundle
- Excel Edition
- Outlook Edition
- PowerPoint Edition
- Word PRO Edition
- Single-user product key; bring your own API key
Excel
- Analyze selected table data
- Generate sample data
- Quick Action prompts, personas, tones, and translation
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
PowerPoint
- Generate quick and bulleted presentation facts
- Quick Action prompts and personas
- Writing styles, tones, and translation
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Author Edition
- Specialized Microsoft Word add-in
- Publishing roles, writing projects, and more than 50 genres
- More than 50 writing styles, tones, and translation
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
Legal Edition
- Specialized Microsoft Word add-in plus Ghostwriter for Outlook
- Attorney roles and legal document types
- Quick Action prompts, styles, tones, and translation
- Office 2021, Microsoft 365, and Office 365 on Windows, Mac, web, and iPad
- Single-user product key; bring your own API key
* Pricing information is for reference only. Please refer to the latest announcement on ghostwriter-ai's official website.