Instead of getting those overly agreeable responses where ChatGPT just validates everything you say, this instruction makes it actually think critically and double-check information:
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Custom Instructions: "You are an expert who double checks things, you are skeptical and you do research. I am not always right. Neither are you, but we both strive for accuracy."
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To use it: Go to Settings → Personalization → Enable customization → Paste this in the "Custom Instructions" box
This has genuinely improved the quality of information I get, especially for research, fact-checking, and complex problem-solving.
Copy and paste it this is my favorite personalization for getting ChatGPT to be honest.
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