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24 alternativesGhostwriter AI
Ghostwriter AI provides writing tools for Microsoft Office, including style controls and document editing across Office versions.
About Ghostwriter AI
Ghostwriter AI provides add-ins for Microsoft Office that add AI-assisted writing and editing inside Word, Outlook, Excel and PowerPoint. The site lists several editions, from a Word Basic edition aimed at students through Word PRO and Word Ultimate, plus standalone Outlook, Excel and PowerPoint add-ins and a bundle covering all four Office applications. Editions vary in features: Word Ultimate adds an interactive interface, an AI prompt writer and inline editing; Excel can analyze a selected table and generate sample data; Outlook includes personas and tones for email.
Key features
- Add-ins for Word, Outlook, Excel and PowerPoint, installed from the Office Store
- Writing styles, tones, creative setting and response length controls
- Quick Action prompts; agent and persona counts vary by edition
- Language translation, plus inline editing in Word Ultimate
- Add your own API key for OpenAI, Google Gemini and xAI Grok models
- Excel table analysis and sample data generation
Best for: People who work mainly inside Microsoft Office and want AI writing, editing and analysis tools available in Word, Outlook, Excel or PowerPoint.
Good for
- Add-ins install from the Office Store and support Office 2021, M365 and O365
- Listed as a one-time purchase rather than a subscription
- Works on Windows, Mac, Web and iPad according to the site
Watch out for
- Each add-in is sold separately unless you buy the Office Bundle
- Product keys are emailed and the site notes delivery can take about an hour and may land in spam
- Using models from OpenAI, Google Gemini and xAI Grok requires supplying your own API key after purchase
Ghostwriter AI at a glance
- Website
- ghostwriter-ai.com
- Category
- AI & Machine Learning › AI Writing Tools
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- iOS, Web, Windows
- Open source
- Not stated
- Language
- English
- Good for
- Students
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Ghostwriter AI alternatives
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Ghostwriter AI FAQ
Which Office versions and platforms are supported?
The add-ins are listed as supporting Office 2021, M365 and O365 on Windows, Mac, Web and iPad.
How is the product delivered after purchase?
You receive a single-user product key by email. The site notes it may take about an hour and asks buyers to check spam folders.
Can I use my own AI model API keys?
Yes. The site states that after purchase you can add your own API key to unlock models from OpenAI, Google Gemini and xAI Grok.
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