ChatGPT, Copilot, Gemini, Mistral, Claude: which AI assistant for your business?

Updated on 10 November 2026: this article is now a summary. The full guide, with prices, uses and what happens to your data, is here: Which AI for which task? The SME guide.

There is no "best AI", only the right one for your context

The major assistants are often on a par for everyday tasks. For an SME, the choice comes down to three criteria: integration with your tools, the contractual framework around your data and the price per user.

Assistant Ideal if… Watch out for
Copilot You are on Microsoft 365 Clean up file access rights first
ChatGPT You want a versatile tool Require the Business plan, not personal accounts
Gemini You are on Google Workspace Same remark as Copilot
Mistral (Vibe, formerly Le Chat) You prefer a European vendor Training on by default on personal plans
Claude Lots of writing and analysis Less integrated with office software
Local AI Highly sensitive data Suitable hardware required

Further reading

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