AI writing assistant for Microsoft Word
Write, rewrite and summarize without leaving Word
Draft documents from a short prompt, polish any paragraph and summarize long reports, all from one sidebar in Word.
★★★★★4.8· 80 ratings onFree to start · No credit card required
Project Proposal: Customer Portal Redesign
This proposal outlines a three-month plan to redesign the customer portal, reduce support tickets by 30% and improve onboarding for new accounts.
Objectives: simplify navigation, add self-service billing and introduce guided setup for first-time users.
Timeline and budget are detailed in the sections below.
Here’s a draft with an overview, objectives and next steps:
- Overview and goals
- Three key objectives
- Timeline and budget
The same work, in a fraction of the time
Typical times. Your results will vary.
Everything you need, right inside Word
One sidebar. No copy-paste, no switching tabs.
Draft from a prompt
Turn a few notes into a report, proposal, letter or essay, ready to edit in your document.
Rewrite and paraphrase
Make any passage more professional, casual, persuasive or concise, without changing what it says.
Summarize documents
Get the key points of a long document or selection as clear bullet points in seconds.
Translate 100+ languages
Translate whole documents or selected passages while keeping your formatting.
Polish any paragraph in one click
Select text, say how it should sound, and CoreGPT rewrites it in place.
- Professional, friendly, persuasive or academic tone
- Fix grammar and tighten wording
- Replace the selection or insert below it
Update for the Acme account
Thank you for your patience while we resolved the delivery issue.
We have identified the cause of the delay and put measures in place to ensure it does not happen again. Your order will arrive on Friday.
Please let us know if there is anything else we can help with.
We identified the cause of the delay and have put safeguards in place so it won’t happen again. Your order will arrive this Friday.
Get the point of long documents fast
Summaries, key facts and action items from any report, contract or paper.
- Summarize the whole document or just a selection
- Ask questions about what’s in the document
- Pick ChatGPT, Claude or Gemini for each task
Annual Report 2026
Revenue grew across all regions, led by strong demand in Europe and a successful product launch in the second quarter.
Operating costs remained flat while headcount grew by 12%, improving margins for the third year in a row.
Next year the company will focus on expanding partnerships and launching two new products.
Key points:
- Revenue grew in every region, led by Europe
- Costs flat while headcount rose 12%
- Next year: partnerships and two new products
Up and running in 30 seconds
No setup and no API keys.
Add it to Word
Install from Microsoft AppSource. Works on Word for the web, Windows and Mac.
Open the CoreGPT sidebar
Select some text, or start from a blank page.
Ask, then insert
Draft, rewrite, summarize or translate, then insert the result.
CoreGPT for Microsoft 365
One plan for Word and every other app
Use CoreGPT in all 5 apps with one shared pool of credits, for you or your whole team.
Common questions
Is it free?+
Yes, you can start for free with trial usage included. When you need more, you can upgrade to a Word plan, or to CoreGPT for Microsoft 365 to use one plan in Word, Excel, PowerPoint, Outlook and OneNote.
Which AI models can I use?+
You can switch between ChatGPT, Claude and Gemini models right in the sidebar, so you can pick the one that suits each task.
Which versions of Word does it work with?+
It installs as a standard Word add-in and works on Word for the web, Windows and Mac.
Is my document safe?+
Your text is only sent to the AI model to create the response you asked for. We never store or share your documents.
Do I need an API key?+
No. It works right after installation, with no API keys or setup.
Start saving time today
Takes 30 seconds to install. Free to start.
Add to Word — Free