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BeginnerCore Techniques
Negative Prompting: Complete Guide for Prompt Engineers
Explicitly tell the model what NOT to do to prevent unwanted outputs and constrain behavior. Learn when to use it, see a real example, and understand the best practices.
When to Use This Technique
When models persistently produce outputs you don't want — add negative instructions to correct the behavior.
Example Prompt
Write a product description. Do NOT use exclamation marks, do NOT mention pricing, and do NOT use generic phrases like 'cutting edge' or 'state of the art.'
Pro Tips
- ✓Negative instructions often more effective than positive ones for corrections
- ✓Be specific — 'do not be verbose' is weaker than 'respond in 3 sentences or fewer'
- ✓Combine negative and positive instructions
- ✓Test that negatives don't cause overcorrection
More Practice Prompts
Write a product description. Do NOT use exclamation marks, do NOT mention pricing, and do NOT use generic phrases like 'cutting edge' or 'state of the art.'
FAQ
When should I use Negative Prompting?
When models persistently produce outputs you don't want — add negative instructions to correct the behavior.
What difficulty level is Negative Prompting?
Negative Prompting is considered Beginner level in the Core Techniques category.
Quick Facts
DifficultyBeginner
CategoryCore Techniques