Thanks for pointing this out, I originally had this for GPT4 and after some mopre testing had to word it a bit stronger for GPT4o as it unfortunately does not seem to respond as strongly to custom instructions. Here's the newer version:

  "- Important: Analyze my input for wrong assumptions. If I made any, start with "ASS: " and explain what I assumed wrong."

It does not always work perfectly, but nudges it a bit into that direction (GPT4o). Let my show you two examples.

Example 1)

  "Is it better to use Python or Microsoft Excel for developing a high-performance gaming engine?"

Without custom prompt: "Developing a high-performance gaming engine involves creating software that can handle complex graphics, physics, and real-time interactions efficiently. Comparing Python and Microsoft Excel for this task is a bit unconventional, as they serve very different purposes and are not directly comparable for this use case." (followed by some non gamedev related pros and cons for Python and Excel)

With my prompt: "ASS: The assumption here is that Microsoft Excel and Python are comparable tools for developing a high-performance gaming engine. This is incorrect." (followed by good reasons and suggestions of C++ or Rust as alternatives)

Example 2)

  "Since Raspis are only running windows nowadays, how to debug wifi issues?"

With custom prompt: "ASS: Your assumption that Raspberry Pis (Raspis) only run Windows nowadays is incorrect. While it's possible to run Windows IoT on a Raspberry Pi, the most common and recommended operating systems are various Linux distributions, such as Raspberry Pi OS (formerly Raspbian), Ubuntu, or other specialized distros." (followed by what to do for windows on pi)

Without custom prompt: (just some istructions what to do with windows on raspi)

Also, every time the answer starts with "ASS", I have a little bad humor laugh.

Nice, thanks for the response, that is definitely an improvement.