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Prompt Engineering - Reasoning Efficiency (Depth vs Speed)

Efficiency — Depth vs Speed

Efficiency means getting the best output with the minimum words and time. Not every question needs step-by-step reasoning:

  • Simple questions → quick answers.
  • Complex questions → full reasoning.

Balance depth and speed.

AvoidDo Instead
Long prompts for simple questionsShort prompts, quick answers
Reasoning for everythingReasoning only when needed
Uncontrolled output lengthAlways fix the length
Wasting tokensEfficient, tight prompts
Example01
Prompt PreviewChatGPT-style
EFFICIENT: Solve the profit percentage step by step. Final answer in one line.
steps for logic, one line for speed
Copy the prompt and paste it into ChatGPT, Gemini, or Claude to try it.
📝 Key Takeaways
  • Efficiency means getting the best output with the minimum words and time.
  • Not every question needs step-by-step reasoning.
  • Simple questions should get quick answers; complex ones should get full reasoning.
  • Long prompts for simple questions waste time and tokens.
  • Always fix the output length.
  • Efficiency = depth when needed, speed when not.

🧠 Test Your Knowledge

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