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AI proof of concept for companies in Germany

Before your company sets a budget for an AI idea, a proof of concept shows whether the idea works. It tests one task on your own data against a pass mark we agree on before I build anything, and it ends with a measured result. I take on freelance and interim engagements, remote from Frankfurt, with on-site days when the work needs them. Let's talk about your needs in a free 30-minute video call.

Portrait of Michael Wutzke, Freelance AI Developer in Germany
Michael Wutzke, Freelance AI Developer in Germany

What I test for your company

  • Experience with systems and their users

    For more than twenty years I have designed systems for the people who use them and challenged concepts that only worked on paper. An AI test faces the same question: does it help your staff?

  • A pass mark set in advance

    Before I build, we write down what the AI must reach, for example 95 of 100 delivery notes read correctly. The test ends with a number against that mark.

  • Results measured by a script

    In a client's project in June 2026 an AI agent did its job correctly and reported 10,481 records instead of 1,832. Since then a separate script measures each result.

  • Coding agents under written rules

    I build with Claude and Codex under written rules. For a client this work has produced more than 300 API endpoints and more than 8,000 commits.

  • Knowledge for your team

    I teach practical work with Claude at Claude Hacker House. During the test your staff learn how the AI step works and where it fails.

  • A decision you can take

    You receive the measured result and the list of cases the AI got wrong. Whether the idea goes further stays your decision.

What an AI proof of concept answers

An AI proof of concept answers one question: does an AI do a given task on your data well enough to be worth a budget? It is a small, working test with a number at the end.

Management has seen AI demos, and staff use ChatGPT on their own. Nobody in the company knows yet whether the AI reads your delivery notes or your support tickets as reliably as the text in the demo. A proof of concept finds out on real cases from your company, before anyone plans a project around the idea.

How I build and measure the test

The test starts with the answers. Your department picks the cases, and a person who knows the work writes the right answer for each one before the AI sees them. Then I build the AI step on a development system, with Claude or Codex as coding agents, and run it on the same cases. A script compares each answer of the AI with the answer your department wrote and counts the hits.

I measure with a script because the report of an AI can be wrong while its work is right. In June 2026 an agent in a client’s project assigned 1,831 of 1,832 records correctly and then reported 10,481 records, because it had counted a wider area than the task named. Details: Running a company of AI agents with Paperclip.

The AI in the test works under the rules I use for coding agents. It gets the rights of a new colleague on the first day: it reads copies of data and cannot change anything in your live systems. Details: AI agents under the same rules as humans.

The test sheet: seven decisions before the build

Fill in the sheet with your team before our first call, or we fill it in together in the assessment. The examples show one possible task.

DecisionExampleWho decides
The taskRead the order number and the delivery date from supplier delivery notesThe department that does the work today
The cases100 delivery notes from the last quarter, bad scans includedThe department
The right answersWritten by a clerk for each case before the AI runsThe department
The pass mark95 of 100 correct, and no wrong delivery date passed on without a warningManagement
The data rulesCopies without personal data, on a development systemYour data protection officer
The modelA cloud model through its API, or an open-weight model on your own serverIT
The next step after a passA production version with user rights and logging, or a second taskManagement

A test without the third row measures nothing: without the right answers written down in advance, the result is an impression.

Who I am

I am Michael Wutzke from Frankfurt. I have worked in IT and media for more than twenty years, among other roles as CIO at the Frankfurt-based company Blocksize Capital. Today I work as an AI engineer on a client’s platform with Claude and Codex, and at Claude Hacker House I teach practical work with Claude. I am also interested in open-source AI models that a company runs on its own servers. Details: Career stages.

How an engagement runs

  1. Free video call

    In 30 minutes we talk about the task the AI should take over and the data it would need.

  2. Assessment together

    We choose one task, look at sample documents or records and agree on the pass mark. Your department names the person who writes the right answers.

  3. Quote and order

    The assessment ends with a quote. The build starts when you accept it.

  4. Build and measure

    I build the test on a development system and run it on the agreed cases. A script compares each answer of the AI with the answer your department wrote.

  5. Result and decision

    We go through the result and the failed cases together. You decide whether the idea moves on to a production version.

Questions companies ask

What is an AI proof of concept?

A working test of one AI task on a company's own data. It answers one question: does the AI do this task well enough to justify a budget? A clickable prototype shows screens for a decision, and an MVP puts a first version in front of real users.

Which AI model does the test use?

The one your data rules allow: Claude or ChatGPT through a business plan or an API, or an open-weight model on a server of your own. The page Self-hosted LLMs such as DeepSeek covers the last case.

May our data go into the test?

Your contracts and your data protection officer decide that. We agree in the assessment which data the test uses. Where names play no part in the task, the test runs on copies without them.

What happens after a successful test?

The code of the test belongs to your company. A production version needs more: user rights, logging, error messages that reach a person, and someone who confirms what the AI changes. I can build it, or your team takes it over.

What if the AI misses the pass mark?

Then your company has spent the budget of a test. The failed cases show where the AI fell short, and whether a narrower task could pass.

Which engagements do you take on?

Freelance and interim engagements, part time or full time. I work remote from Frankfurt and come on site in Frankfurt Rhine-Main or elsewhere in Germany when the work needs it.

Details on the work behind this page

Your AI proof of concept developer in Germany

I am Michael Wutzke, a freelance AI developer in Germany, based in Frankfurt. In a free 30-minute video call we talk about your AI idea and your needs, and you learn which task a proof of concept should test first and how we would measure it.

Portrait of Michael Wutzke, Freelance AI Developer in Germany

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