ChatGPT or Claude for your Exact Online connector? An honest comparison

The Exact AI Connect connector works with both ChatGPT and Claude. Which should you choose? The answer depends on what you want to do with it and how much you are willing to pay.

ChatGPT and Claude for Exact Online compared

The Exact AI Connect connector works with both ChatGPT and Claude. That raises a logical question: which one should you choose? The answer depends on what you want to do with it and how much you are willing to pay.

We use both tools every day and see where they excel and where they fall short. This is not a marketing story but an honest overview based on our experience.

Price and licence

  ChatGPT Claude
Free version Yes, but no MCP support Yes, but no MCP support
Minimum subscription for the connector Plus (€23/month) Pro (€18/month)
Team subscription Business (€21/user/month) Team (€21/user/month)
Enterprise Available Available

The connector requires MCP support, and that is only available in paid subscriptions. The prices are comparable at the moment.

Please note: on top of the AI subscription you pay for the Exact AI Connect subscription (Essentials or Analytics). So the total cost is the AI tool plus our connector.

Reliability with accounting questions

This is where the biggest difference lies. Accounting questions revolve around exact numbers, correct tables and accurate calculations. No room for interpretation.

Claude is generally stronger at:

  • Logical reasoning with complex questions (multiple steps, comparisons)
  • Consistently using the correct tables and fields
  • Clearly indicating when data is incomplete
  • Fewer "hallucinations" with financial calculations

ChatGPT is generally stronger at:

  • Speed with simple lookup questions
  • Versatility (text, images, code in one conversation)
  • Familiarity: many users already know the interface
  • Broader integration options beyond accounting

MCP stability

MCP (the technology behind the connector) works with both tools, but the implementation differs.

Claude:

  • MCP is an Anthropic standard; Claude implements it natively
  • The connection is usually more stable
  • The tool is automatically available in every conversation (no manual activation)

ChatGPT:

  • MCP support is newer
  • The tool has to be activated manually in each chat
  • Occasional connection problems, particularly during longer sessions

In practice both tools work well. With Claude the experience is a little smoother, with ChatGPT it sometimes takes an extra step.

When do you choose what?

Situation Recommendation Why
You already use ChatGPT daily ChatGPT Low threshold, no new tool to learn
You do complex financial analyses Claude Better reasoning logic, fewer errors
You want the connector as simple as possible Claude No manual tool activation needed
Your team already works with ChatGPT Team ChatGPT Consistency in tooling
You want the lowest risk of hallucinations Claude Stronger in factual correctness
You combine bookkeeping with other tasks ChatGPT More versatile beyond financial questions

Our advice

If you use the connector mainly for your bookkeeping and you have no preference, we recommend Claude. The reasoning logic is stronger for financial questions and the MCP integration is more stable.

Do you already use ChatGPT daily for other tasks? Then the connector works well there too. Most questions produce the same result, regardless of the tool.

And the nice part is that you can switch. The Exact AI Connect connector works with both tools at the same time. You can use Claude for analyses and ChatGPT for quick lookup questions, on the same subscription.

Try it yourself

During the free trial period you can test the connector with both tools. Ask the same question to ChatGPT and Claude and compare the answers. That way you can discover for yourself which tool suits your way of working best.

Do you want to try it yourself? Start for free with Exact AI Connect →

Frequently asked questions

Both work well with the connector. If you mainly use it for your bookkeeping, we recommend Claude: stronger at reasoning with financial questions and a more stable MCP connection. If you already work in ChatGPT every day, that is fine too, because most questions produce the same result in both tools.

No. The connector requires MCP support, which is only available in the paid subscriptions: with ChatGPT from Plus (23 euros per month), with Claude from Pro (18 euros per month). You also need an Exact AI Connect subscription, either Essentials or Analytics.

You do not have to choose: the connector works with both tools at once, on the same Exact AI Connect subscription. Many users do complex analyses in Claude and quick lookup questions in ChatGPT, switching whenever it suits them.

Yes, that is where the biggest difference lies. Claude generally reasons better with multi-step questions, uses the right tables more consistently and is quicker to point out when data is incomplete. ChatGPT is faster with simple lookup questions and more versatile beyond bookkeeping.

Just test it yourself: during the free trial period the connector works with both tools. Ask the same question to ChatGPT and to Claude and compare the answers, then you will quickly see which tool suits you best.