ChatGPT and Claude are both good, and that’s exactly what makes the decision so difficult. Most companies choose a tool once and stick with it, even if half of their tasks would be much better handled by another tool. This guide flips the question around: it’s not about which tool is better, but which one is best suited for which task. Includes a decision table for eight typical tasks, an honest chapter on data protection in Switzerland, seven ready-made prompts, and 39 linked original sources for verification.
Just two years ago, the question was easy to answer because there were hardly any differences. Today, the opposite is true: Both providers have built their own work interfaces—ChatGPT Work and Claude Cowork—both have multiple model tiers, both create Word, Excel, and PowerPoint files, both perform tasks on a schedule, and both integrate with thousands of other apps via Zapier. The differences are no longer obvious; rather, they lie in the details: in custom GPTs, the size of the context window, Claude Design, the limits for scheduled tasks, and, above all, data protection.
On top of that, there’s a problem that every online comparison faces: it becomes outdated within weeks. In 2026 alone, both manufacturers changed their flagship models several times. Anyone who bases their decision on a model name will have to make a new decision every quarter.
I see this happen in practically every workshop I conduct with Swiss banks, insurance companies, hospitals, and SMEs: Some participants are struggling with an 80-page contract in a tool whose context window is too small for it. The others have purchased a business license and assume that this also covers data protection—which it does not. And almost everyone consistently uses the fast model, even though the difference in results between the fast and thorough models is usually greater than the difference between the two providers.
The “ChatGPT or Claude” Guide is a ten-page document by Dr. Sophie Hundertmark that shows companies which of the two AI tools is the better first choice for each task. At its core is a decision-making table featuring eight typical office tasks, each with a clear recommendation. In addition, the guide includes a feature comparison covering twelve topics, a chapter on ChatGPT Work and Claude Cowork—including planned tasks and integrations—a straightforward chapter on data protection with a focus on Switzerland, a complete pricing overview of both providers, seven ready-made sample prompts, and a checklist with eight review questions. Each key statement is supported by one of 39 linked original sources. The guide costs CHF 20 and is available for immediate download as a PDF and a Word file after purchase.
Specifically, the guide contains:
For executives and SMEs who need to decide which tool to implement in your organization: You’ll receive a well-reasoned recommendation that you can present at your next meeting—along with the reasons why the lower-cost license tier might not be sufficient for your data category.
For consulting, trust services, and legal matters, where long documents are part of everyday life: You’ll learn which tool can process eighty pages at a time without losing track of the connection between page 4 and page 71, and which data protection issues you need to clarify before handling your first client document.
For Marketing, Communications, and Content: You’ll learn where images, social media, and research can be handled most efficiently, how to permanently save your own writing style, and what Claude Design offers in terms of brand-compliant slides and layouts.
For Finance, Controlling, and HR: You’ll learn which tool works directly within your existing Excel file instead of creating a new one, and what rules apply before HR or customer data is fed into an AI tool.
For anyone who wants to automate recurring processes: This guide explains how scheduling works with both providers, what the limitations are, and which tool will get you the farthest without any programming knowledge.
For trainers, instructors, and AI managers: The decision table and sample prompts are intentionally worded so that they can be used directly in training and onboarding sessions. You may edit the Word version for this purpose.
Not for development teams looking for a benchmark comparison of programming skills—there are better sources for that. And it’s not meant for absolute beginners: The guide assumes that you’ve already worked with ChatGPT or Claude before. If that’s where you’re at, my ChatGPT beginner’s course is the better place to start.
Three things. First, every key claim is supported by evidence: 39 links to the original pages on OpenAI, Anthropic, and Zapier, which are numbered in square brackets within the text. You can trace every number back to its source—and you should, because that’s exactly what the guide recommends when dealing with AI in general.
Second, it was written for Switzerland and is not a translation from English: data protection in light of the revised Federal Data Protection Act (DSG), the issue of data storage in Switzerland, and guidance on when a sovereign solution is the right choice instead of one of the two U.S. systems.
Third, there is a clear recommendation. No ten-page “it depends” explanation, but rather an assessment of what I recommend for most companies—and in which cases I recommend the opposite. I don’t make any money regardless of which of the two tools you choose.
The guide costs CHF 20 as a one-time payment. There is no subscription and no recurring fees. After purchase, the files are immediately available for download.
A ten-page document in two formats: as a PDF for sharing and as a Word file for editing. The content includes eight chapters ranging from decision tables to feature comparisons, data protection, and pricing, as well as seven ready-to-use prompts and a verification checklist, along with 39 linked original sources.
Payment is processed through a secure payment system using a credit card or TWINT. Immediately after payment, you’ll receive the download link on the confirmation page and via email as well. PDF and Word files can be opened on any device.
Because most free comparisons rely on tools that someone is trying to sell you, and because they’re rarely backed up by evidence. Every statement here is linked, verified, and dated. Twenty francs is roughly equivalent to one hour of your own research time—the research behind this guide took significantly longer.
Based on experience, yes—in three places. When it comes to data protection, because most people assume their business license covers more than it actually does. When it comes to scheduled tasks, where there are strict deadlines per schedule that hardly anyone is aware of. And when choosing a model, because the difference in results between the fast and the thorough models is often greater than that between ChatGPT and Claude.
No. This guide is written for users, not for IT staff. Technical terms are explained wherever they appear. You just need to have some prior experience working with ChatGPT or Claude.
As of July 31, 2026. All prices, limits, and features have been verified on the official provider websites as of this time. The date is listed on every page so that when you share the information, you can always see what it’s based on.
Something is going to change—that’s for sure. For this reason, the recommendations in the guide are deliberately not tied to specific model names, but rather to task types and structures that are likely to remain stable over the long term. If there are major changes, you’ll receive the updated version for free via email.
No. Neither OpenAI nor Anthropic has anything to do with this guide; there is no monetary compensation involved, and there are no affiliate links.
He answers the questions that need to be addressed before making a decision: Where is the data stored? At what license level does European data storage become available? What is excluded from the training by default? And when is neither system suitable? However, this is not legal or data protection advice and does not replace a review of your specific case.
In that case, the honest answer is that neither ChatGPT nor Claude is the right choice. The guide makes this clear and points you in the right direction: self-sovereign solutions with data stored in Switzerland or a controlled, in-house environment.
Usually not. The guide explains the conditions under which a second subscription is worth it and, using the “Challenger Prompt,” shows you how to get an independent second opinion even with just one tool.
This purchase is for personal use. For team and enterprise licenses or accompanying training, please contact sophie@hundertmark.ch directly—we offer workshop formats tailored to small and medium-sized businesses.
Yes, that’s why the Word version is included. You can remove chapters, add your logo, or use your own examples if you’re using this for internal training. This does not cover disclosure to third parties or publication.
Yes. I regularly conduct introductory and advanced workshops for teams, executive management, and entire workforces in German, English, or Italian. Just get in touch, and we’ll see what works best for you.
