Copilot, ChatGPT, Claude or Gemini: which is best for a small business?
There is no single best tool. Start with the one that fits the software you already use, choose a business plan and standardise on one or two.
Why there is no single winner
All four are capable general-purpose assistants, and they leapfrog each other every few months. A ranking written today will be out of date by spring. What changes less quickly is how each one fits into the way your business already works, and that is the better basis for a decision.
How they differ in practice
Microsoft Copilot: Built into Microsoft 365, so it works inside Word, Excel, Outlook and Teams and can draw on the files and emails each person already has access to. It suits businesses that run on Microsoft.
Google Gemini: The equivalent for Google Workspace, working inside Gmail, Docs, Sheets and Meet. It suits businesses that run on Google.
ChatGPT: A standalone assistant from OpenAI. It is the one most staff have already tried, with a wide range of features for writing, analysis, research and images.
Claude: A standalone assistant from Anthropic. Many people favour it for long documents, careful writing and detailed analysis.
ChatGPT and Claude both offer team plans and can connect to other software, so the gap between "built in" and "standalone" is narrower than it used to be.
Start with the software you already use
If your documents, email and meetings live in Microsoft 365 or Google Workspace, the assistant built into that suite is usually the simplest first step. People do not need to move information between systems, and existing permissions carry over.
A standalone assistant is often the better choice where the work is mostly thinking and writing, such as proposals, research, analysis and planning. Many small businesses end up with one of each: the built-in assistant for everyday office work and one standalone tool for deeper tasks.
Check the data terms before the features
The plan matters more than the brand. Business and team plans generally commit to not using your content to train the provider’s models, and they give you admin controls. Free and personal accounts often work differently. Read the current terms for the exact plan you intend to buy, because they change. The risks are covered in whether staff can put client data into ChatGPT under UK GDPR.
Standardise on one or two
Paying for all four spreads cost and skill too thinly. When everyone uses the same tool, people share prompts and tips, training is simpler and your rules are easier to write. Pick one or two and name them as approved.
Test on your own work
Before committing, take three real tasks from your business and run them through two shortlisted tools with a small group for a fortnight. Compare the results on quality, time saved and how easy people found it. That tells you more than any review.
Go Wisely does not sell or resell any of these tools, which is why this answer does not name a favourite. There is more on that in whether Go Wisely’s AI advice is vendor-independent.
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