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Better ChatGPT prompts

How to write better ChatGPT prompts

Updated October 29, 2026

Quick answer

Writing better ChatGPT prompts comes down to running four quick checks: state the reader, specify the deliverable, define the format, and add negative constraints. Checking these four points before sending prevents the model from choosing arbitrary defaults. As of October 2026, ChatGPT lacks built-in prompt evaluation, so applying these checks relies entirely on your manual review. GPT Master's Prompt Optimizer rewrites your draft and shows it beside your original, so you can check both versions against the four points.

Prompting advice often presents long lists of complicated rules that are difficult to remember while working. A dependable habit is much simpler. Strong prompts systematically answer four questions: who will read the output, what specific document is needed, what visual layout should it have, and what should be excluded. Addressing these points prevents back-and-forth follow-up questions.

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Two-pane comparison window showing a rough prompt rewritten with structured checks
Verify your prompt meets the four essential checks using side-by-side comparison.
  1. 1

    Draft a prompt addressing the four core checks

    In the ChatGPT message box, write your initial draft covering the reader, deliverable, format, and boundaries. For instance, ask for an executive briefing formatted as three paragraphs without technical jargon.

  2. 2

    Click Optimize Prompt to polish the structure

    Click the Optimize Prompt button beside the message box. The tool analyzes your draft, considers recent conversation context, and streams an improved prompt into the Optimized pane.

  3. 3

    Review the comparison and apply the prompt

    Check the side-by-side comparison to see whether the rewrite covers all four points. Click 'Use this version' to place the text into the ChatGPT composer, where you can make final edits before sending.

Follows recommended practices for Chrome extensions

Featured on the Chrome Web Store

★★★★★4.8 · 310 reviews16,000+ active users

Apply four essential prompt checks before you hit send.

Add to Chrome · Free

Frequently asked questions

Do I need complex templates to write good prompts?
No. Complex templates often add unnecessary filler. Running the four mental checks on two or three direct sentences produces cleaner results than a rigid template.
Can I configure permanent instructions in ChatGPT?
Yes. You can use native Custom Instructions or Project instructions to store ongoing background information, though individual task requirements and deliverables still need their own specific prompts each time. The Prompt Optimizer in GPT Master helps sharpen those task prompts before you send.
Can I adjust the draft in the comparison window?
Yes. The Original pane is editable. You can update your text, adjust constraints, and click 'Re-optimize' to generate a fresh rewrite based on your revised draft.

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Apply four essential prompt checks before you hit send.

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Make ChatGPT work the way you actually use it.

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★★★★★4.8 · 310 reviews16,000+ active users

Follows recommended practices for Chrome extensions Featured on the Chrome Web Store