Typing one word changes the whole answer.
That sounds too simple. But a prompt engineer on Reddit just tested 15 so-called “one-word commands” for ChatGPT and found half of them genuinely flip the model’s behavior. The other half? Just dressed-up instructions with a label slapped on.
Here’s what actually works.
The Old Way vs the Smarter Way
People treat prompt engineering like a writing assignment. Multi-paragraph setups, tweaked sentences, 10 minutes of prep. Sometimes it lands. Usually it’s overkill.
The smarter approach: learn a handful of single-word triggers that reliably change how the model responds. No fluff. No setup. Clear instruction, every time.
🎯 The Three Worth Keeping
Out of 15 tested, these are the ones that actually change the output:
- /uncertain – tells the model to flag what it isn’t sure about instead of confidently filling gaps. Kills hallucinated specifics.
- ELI10 – “explain like I’m 10.” Fast test of whether the model actually understands a topic or just parrots jargon.
- CRITIQUE – paste your draft and ask it to attack the weak points. Honest feedback instead of hollow validation.
Why One Word Works Better Than a Paragraph
ChatGPT has no hidden command parser. There’s no secret feature being unlocked here.
These work because they’re clear, named instructions. And a clear instruction is the whole game. The one-word format just makes you consistent. You stop reinventing the prompt and start building a reliable toolkit.
Shorter instruction. Better output. Every time.
Three Ways to Use These Today
- Open any research prompt with /uncertain when accuracy matters
- Add ELI10 to any technical topic you want to actually understand, not just skim
- Type CRITIQUE before pasting a draft when you need real feedback, not a compliment
That’s your starting point. Three words. Add them this week and you’ll notice the difference.
15 One-Word Commands That Completely Change How ChatGPT Answers You
by u/Exact_Pen_8973 in PromptEngineering