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GPT-5 is Breaking Every Prompting Rule You Know (And Why Your Old Techniques Will Fail)

What I learned from OpenAI's official documentation (and why most people are missing it)

Gencay I.'s avatar
Gencay I.
Sep 16, 2025
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If you're still using GPT-4 prompting techniques, you're not using GPT-5's true potential. OpenAI's new model isn't just smarter, it requires a completely different approach.

Here's the shocking truth: Your previous prompts might actually be hurting GPT-5's performance. Forget your old mindset of "be thorough," "gather all information," and "explain everything." GPT-5 is so intelligent that over-guidance is slowing it down.

In this article, I'll share changes extracted from OpenAI's official documentation. We'll build this knowledge into a real Reply Assistant, something you can actually use daily for Slack, Email, and WhatsApp responses.

Ready? Because most of what you know is now obsolete.


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