AI Prompt Builder
Turn a rough idea into a structured prompt with role, constraints, and output format.
What it does
Turns a rough goal into a structured prompt with labeled ROLE, TASK, CONSTRAINTS, and OUTPUT FORMAT sections, phrased for the target model you pick — Gemini, Claude, or GPT.
Who it's for
Anyone writing prompts for their own AI workflows — support scripts, content generation, data extraction — who wants a structured starting point instead of a blank text box.
How to use it
- 1.Describe what you want the AI to do in plain language.
- 2.Pick the target model: Gemini, Claude, or GPT — this changes phrasing and framing, not just formatting.
- 3.Generate to get a structured prompt with ROLE, TASK, CONSTRAINTS, and OUTPUT FORMAT sections.
- 4.Paste the result directly into your target model and adjust constraints as you test real outputs.
Example
Input
Summarise customer support tickets into weekly themes · Claude
Output
ROLE: You are a customer support analyst summarizing ticket trends for a product team. TASK: Read the provided support tickets from the past week and group them into 3-6 recurring themes. CONSTRAINTS: Do not quote individual customers by name. Do not invent themes not supported by at least 2 tickets. Keep each theme to 2-3 sentences. OUTPUT FORMAT: A numbered list of themes, each with a one-line title followed by a short summary and the approximate number of tickets it covers.
The formula
A specific goal + explicit constraints + a stated output format = a prompt the model can follow consistently, instead of one that needs three rounds of clarification.
SEO tips
- •State the goal as an action, not a topic — "summarize support tickets into weekly themes" beats "support tickets."
- •Pick Claude as the target model if your use case needs nuanced writing or careful instruction-following.
- •Pick Gemini for long-context or high-volume runs where cost per generation matters.
- •Add any format requirement (JSON, bullet list, word count) directly in your goal — it carries into the OUTPUT FORMAT section.
Frequently asked questions
What does the AI Prompt Builder actually output?
A structured prompt with clearly labeled ROLE, TASK, CONSTRAINTS, and OUTPUT FORMAT sections, tailored to your stated goal and target model.
Which target models does it support?
Gemini, Claude, and GPT — pick the one you plan to run the generated prompt against, and the phrasing adapts accordingly.
Which AI model builds the prompt itself?
Google Gemini 2.5 Flash-Lite.
Do I need to know prompt engineering to use this?
No — describe your goal in plain language and the tool structures it into a ROLE/TASK/CONSTRAINTS/OUTPUT FORMAT prompt for you.
Can I edit the output prompt before using it?
Yes — it's plain, editable text. Adjust any section before pasting it into your target model.
Does it work for non-marketing AI tasks?
Yes — the underlying instructions aren't tied to marketing use cases, so it works for any goal you describe, from data extraction to internal scripts.