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Prompt Quality Score

Paste any AI prompt and get an instant 0–100 quality score, an 8-category breakdown, and concrete suggestions to make it better. Free, no signup, and 100% private — the analysis runs entirely in your browser.

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Paste a prompt to grade it

Your score, an 8-category breakdown, and up to 3 fixes appear here instantly as you type.

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Add a “Graded by SurePrompts” badge to your blog post, prompt library, or template marketplace. Paste this snippet wherever you want it to appear:

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  title="Prompt quality — Graded by SurePrompts"
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Preview

What the prompt quality score means

The score is a deterministic 0–100 grade — the same prompt always gets the same number, with no AI guesswork. It rewards the eight traits that consistently separate prompts that get sharp, on-target answers from the ones that get vague filler. A score of 80+ is excellent, 60–79 is good, 40–59 is fair, and anything below 40 usually needs more structure and detail before you send it.

This is a fast, free prompt quality checker— a way to “rate my prompt” before you waste a generation on a weak one. It is not a content filter or a plagiarism tool; it grades the craft of the prompt itself.

The 8 categories we grade

Length & Detail

20 pts

Enough words to be specific without rambling. Very short prompts produce generic results.

Role / Persona

15 pts

Whether you tell the AI who to be ("You are an expert copywriter…").

Specificity

15 pts

Concrete numbers, names, and technical terms instead of vague words like "good" or "stuff".

Structure

15 pts

Numbered steps, bullet lists, headings, and paragraph breaks that make the task scannable.

Output Format

10 pts

Whether you say how the answer should look — a table, JSON, bullet points, word count.

Constraints

10 pts

Guardrails like "do not…", "avoid…", or "limit to…" that keep the output on track.

Context

10 pts

Background on why you need this and who the audience is.

Examples

5 pts

A sample of the desired output (or a code block) that shows the AI exactly what you want.

How to raise your score

  • Open with a role: “You are an expert [field] with 10 years of experience.”
  • Replace vague words (“good”, “stuff”) with concrete numbers, names, and terms.
  • Break the task into numbered steps or labeled sections.
  • State the output format — a table, JSON, bullets, or a word count.
  • Add constraints (“do not…”, “limit to…”) and one example of the result you want.

Want this done for you? The Prompt Optimizer applies these fixes with one click, and the AI Prompt Generator builds a high-scoring prompt from a plain-English description.