First, which Copilot do you mean?
The name covers several products and they have very little in common, which is the main reason comparisons about it go wrong.
- Microsoft 365 Copilot is the in-app assistant inside Word, Excel, Outlook, PowerPoint, and Teams. It is sold per seat to organisations, usually on top of an existing 365 licence.
- Copilot Pro is the consumer subscription for individuals, adding in-app features to personal 365 apps.
- The free Copilot chat is a general assistant in the browser, on Windows, and in Edge.
- GitHub Copilot is a different product entirely, for code in your editor. If that is what you are comparing, see AI for coding and ChatGPT alternatives for coding instead.
This page is about the first two. The essential question with both is whether AI needs to be inside your documents, or beside them.
Where Copilot is genuinely strong
The integration is the product and it is real. Highlighting a paragraph in Word and asking for a rewrite in place, generating a formula against the sheet you are looking at, summarising a Teams meeting you were in, or pulling a draft together from files already in your tenant are all things no external tool can do, because they require being inside the application and inside your organisation's data.
If your day happens inside Office, that in-place experience is worth a lot, and no browser tab replaces it. Nothing in this comparison suggests otherwise.
The limitation is coverage. Copilot is built on the GPT family, so on any task where GPT is not the best model, you have no alternative available. And the moment your work moves outside Office, into a browser, a code editor, a design tool, or a document that lives somewhere else, the integration advantage stops applying and you are using a general chat assistant like any other.
The alternatives, honestly
| Alternative | What it is | Best when |
|---|---|---|
| Stay on Copilot | AI inside Office and Teams | Your work genuinely lives in Word, Excel, and Outlook |
| Google Gemini Advanced | The same idea inside Google Workspace | Your documents live in Docs and Gmail instead |
| ChatGPT Plus | GPT as a standalone product | You want a good general assistant and only GPT |
| Free Copilot chat | The browser and Windows assistant | Light use, and you do not need in-document editing |
| Whizi | Multi-model workspace, flat pricing | Your work spans many tools and you want more than one model |
Worth noting the second row honestly: if you are leaving Copilot because you want AI in your documents but not Microsoft's version of it, Google's equivalent is the closer substitute, not a browser workspace.
The per-seat problem
Copilot is priced per seat, and organisations discover the same thing repeatedly: usage is not evenly distributed. A minority of people use it constantly, a majority try it and drift back to their old habits, and you are paying for both.
That produces a familiar squeeze. Buy seats for everyone and much of the spend is idle. Buy seats for a few and you spend more time managing who has access than the licences cost, while the people without it quietly use a free consumer tool with company documents, which is the outcome nobody wanted.
The alternative worth considering is a general AI workspace for everyone plus Copilot seats only for the roles where in-document editing genuinely earns it. The finance team living in Excel and the executive assistant living in Outlook are strong cases. The rest of the company is usually better served by a tool that works everywhere.
The case for Whizi specifically
Whizi runs anywhere a browser does, with no tenant configuration and no admin console. It includes GPT alongside Claude, Gemini, and leading open models, so tasks where GPT is not the strongest option have somewhere to go. Image generation, document uploads, cross-model prompt templates, and side-by-side comparison are included, and Starter sits below Copilot Pro pricing.
The practical difference on a real task: paste in the draft, get a rewrite from Claude, ask GPT for the structured version, and have Gemini check the numbers against a long source document, all in one thread. That is a different capability from having one model available in the place where your document happens to live.
And what you give up, plainly: no ribbon integration, no in-place editing inside Word or Excel, no access to files in your tenant without uploading them, and no meeting summaries from Teams unless you bring the transcript yourself. Those are real losses if in-document work is most of your day.
How to work out which you need
- For one week, log every AI task and mark whether it happened inside an Office app or somewhere else.
- Of the ones inside Office, mark which genuinely required in-place editing rather than just being where the text happened to be. Copying a paragraph into another tab costs seconds.
- Of the ones outside Office, mark the writing, research, and analysis tasks. Those are where a different model would likely have given you a better answer.
- Run three of those in Whizi with Claude and Gemini and compare against what Copilot produced.
- Look at the split. Mostly in-document work means keep Copilot. Mostly everywhere-else work means you are paying for an integration you rarely touch, with one model family.
- Work out which Copilot product you are actually comparing
- Log for a week whether your AI tasks happen inside Office or outside it
- Separate tasks that need in-place editing from tasks that merely started in a document
- Test your writing and research tasks against Claude and Gemini
- For teams, check how many purchased seats are actually being used
- Consider a mixed setup: a general workspace for everyone, Copilot seats for the roles that need it
Frequently asked questions
Does Whizi integrate with Word or Excel?
No. Whizi runs in the browser alongside any editor, so you paste content in or upload the document. Ribbon integration and in-place editing are Copilot-specific and genuinely useful, which is why the honest recommendation is to keep Copilot if most of your work happens inside Office documents rather than around them.
Is Whizi cheaper than Copilot Pro?
Yes, Whizi Starter is below Copilot Pro pricing while also including Claude, Gemini, and open models rather than just the GPT family. For organisations, the larger question is usually seat utilisation, since per-seat AI licences are consistently used heavily by a minority and barely at all by the majority, and you pay for both.
Can I use both?
Yes, and for many teams that is the sensible arrangement: Copilot seats for the roles that genuinely live in Office documents, and a general workspace for everyone else. It usually costs less than universal Copilot seats and it avoids the outcome where people without a licence quietly paste company documents into a free consumer tool.
Is this about GitHub Copilot?
No, GitHub Copilot is a separate product for code inside your editor, and it is not what this page compares. If that is what you are evaluating, the relevant reading is AI for coding and ChatGPT alternatives for coding, since editor integration and chat-based reasoning about code are different tools that most developers end up using together.
Does Copilot use the same models as ChatGPT?
Copilot is built on the GPT model family, so on many tasks output quality is broadly comparable to other GPT-based products, with differences coming from the surrounding prompts and the context it can reach inside your tenant. The gap is coverage rather than quality: with one model family, there is nothing to switch to on tasks where a different model would be better.