5 best Microsoft Copilot alternatives in 2026

Microsoft 365 Copilot is the default choice for AI in Word, Excel, and PowerPoint, because it is already there. People look for an alternative for a few reasons:

• It needs a Microsoft 365 subscription. Work accounts pay $30 per user a month on top, billed yearly.
• Switching models needs Microsoft 365 Premium or a commercial Copilot subscription.
• It edits the file directly. Microsoft's Excel FAQ says Copilot "edits your workbook directly based on your requests", and you revert with Undo or version history.
• Its editing works in the file you have open.
• On the Family plan, Copilot in the Office apps is "available only to the subscription owner."

What to look for in a Copilot alternative

• Where it works. Inside the Office apps, in its own app, or in a browser.
• Which models it runs. If you already pay for Claude or ChatGPT, a tool that uses that plan costs nothing extra.
• How you review edits. Tracked changes, a separate review screen, or only Undo and version history.
• Whether it keeps real Office files. Some tools work best after converting your file to their own format.
• Whether it can work across files. One request that reads a workbook and updates the report that cites it.

The 5 best Microsoft Copilot alternatives

1. Mimzie
2. Claude for Word, Excel, and PowerPoint
3. Gemini in Google Workspace
4. Claude Cowork
5. ChatGPT Work

1. Mimzie

• Best for: People who want to choose the agent and approve every edit
• Pricing: Free
• What we like: Works across a whole folder of Office files, on the AI plan you already have

Mimzie is a desktop app for macOS, Windows, and Linux. It opens .docx, .xlsx, and .pptx files in its own editors, so you do not need Office installed. It runs Claude, ChatGPT, Gemini, and Grok on your computer, each signed in with your own plan.

Where Copilot works in one open file, a Mimzie project is a folder. An agent can read the contract, update the spreadsheet, and build the deck in one request. By default, every change shows up as a tracked edit that you accept or reject. Mimzie vs Microsoft Copilot has the full comparison.

Pros and cons of Mimzie

What we like:

• You pick the agent and the model for each chat.
• By default, changes wait for you to accept them.
• No Microsoft 365 subscription needed, and files stay in Office formats.
• It has its own agent with free models, so you can try it with no AI plan.

What could be better:

• It is in beta.
• It is a separate app, so it does not help inside Outlook or Teams.
• Workbooks that use pivot tables, conditional formatting, or data validation open as preview only for now.

Mimzie pricing

Free. You bring the Claude, ChatGPT, Google, or Grok plan you already have.

2. Claude for Word, Excel, and PowerPoint

• Best for: People who like working inside Office and prefer Claude
• Pricing: Included with Claude Pro ($20 a month) and higher plans
• What we like: Tracked changes in Word

Anthropic makes add-ins that put Claude in the Office apps. They are available on Pro, Max, Team, and Enterprise plans, and they run on the web, Windows, and Mac. In Word, Anthropic's docs say you can "use tracked changes mode so every edit lands as a revision you can accept or reject in Word's native review pane." In Excel, "Claude warns you before overwriting existing data."

This is the closest thing to Copilot with a different model. Like Copilot, each add-in works in the file you have open.

Pros and cons of Claude's Office add-ins

What we like:

• You stay in Word, Excel, and PowerPoint.
• Included in a Claude plan you may already have.

What could be better:

• You still need Microsoft Office.
• Excel does not support macros, VBA, or data tables.
• No iPad or Android support.

Pricing

Included with Claude Pro at $20 a month, Max at $100, and Team and Enterprise plans. Source: Claude pricing and the Office add-in docs.

3. Gemini in Google Workspace

• Best for: Teams that already work in Google Docs and Sheets
• Pricing: Workspace Standard is $14 per user a month. Google AI Pro is $19.99 a month for individuals
• What we like: It is built into Docs, Sheets, and Gmail

Gemini does in Google's apps what Copilot does in Microsoft's. In Sheets it creates tables, formulas, and charts, and edits from a prompt.

Excel files need a step first. Google's help page says Gemini "works best with native Google Sheets files", and tells you to choose File, then Save as Google Sheets, to use it on an .xlsx.

Pros and cons of Gemini in Workspace

What we like:

• Nothing to install.
• Real-time collaboration, as with any Google file.
• Gemini in Docs comes with Workspace Standard and above.

What could be better:

• Excel files need converting to Google Sheets first.
• It runs Google's models only.

Pricing

• Workspace Starter: $7 per user a month, with Gemini in Gmail
• Workspace Standard: $14 per user a month, with Gemini in Gmail, Docs, Meet, and more
• Workspace Plus: $22 per user a month
• Google AI Pro: $19.99 a month

Source: Google Workspace pricing and Google AI plans.

4. Claude Cowork

• Best for: Handing off a whole task and getting files back
• Pricing: Included with Claude Pro ($20 a month) and higher plans
• What we like: It takes a whole task and can run it on a schedule

Cowork is Anthropic's agent for office work. It reads, edits, and creates Word, Excel, and PowerPoint files, and it can run tasks on a schedule. Where Copilot helps while you edit, Cowork takes the job and comes back when it is done. Mimzie vs Claude Cowork has more.

Pros and cons of Claude Cowork

What we like:

• It works across several files in one task.
• Desktop apps for macOS, Windows, and Linux, plus web and mobile.

What could be better:

• It runs Claude only.
• Approved changes go straight into the file.

Pricing

Included with Claude Pro, Max, Ultra, Team, and Enterprise. Source: Claude pricing.

5. ChatGPT Work

• Best for: People who pay for ChatGPT and want finished documents from a goal
• Pricing: Limited on Free and Go. Full on Plus ($20 a month) and Pro
• What we like: It can stay with a project for hours

ChatGPT Work is OpenAI's agent for finished work. It creates documents, spreadsheets, presentations, and PDFs, and connects to Slack, Google Drive, and SharePoint through plugins. Mimzie vs ChatGPT Work has more.

Pros and cons of ChatGPT Work

What we like:

• Scheduled tasks on Go, Plus, and Pro.
• It runs on desktop, web, and mobile.

What could be better:

• It runs OpenAI's models only.
• On the web you download the result.

Pricing

Go is $8 a month, Plus is $20, and Pro starts at $100. Source: ChatGPT pricing.

Which Copilot alternative should you choose?

• You want to choose the agent, work across files, and approve each edit. Choose Mimzie.
• You want to stay inside Office with Claude. Choose Claude's add-ins.
• Your team works in Google's apps. Choose Gemini in Workspace.
• You want to hand off a task and get files back. Choose Claude Cowork or ChatGPT Work.