AI Prompt Builder
Free tool to assemble structured prompts for ChatGPT, Claude and Gemini. Define the role, context, instructions and format to create truly effective prompts - with built-in AI optimization.
Prompt preview
Start filling in the fields to see your prompt assemble here.
Tips
- Be specific with the role to get expert responses
- The more detailed the context, the better the response
- Specify the format to structure the output
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Frequently asked questions
How do I write a good AI prompt?+
A good prompt has four building blocks: a clear role ("you are a senior SEO expert"), precise context (project, audience, constraints), an explicit instruction (the expected, measurable action) and a defined output format (list, table, JSON, paragraphs). The more context you give, the better the answer. Our builder helps you structure each field so nothing is missed.
What is the structure of an effective prompt?+
The RCIF structure (Role, Context, Instruction, Format) covers 90% of use cases. First set the role to shape tone and expertise, then provide context (situation, available data, constraints), then the instruction (the precise task), and finally the expected output format. This structure works across ChatGPT, Claude and Gemini.
What is the role in a prompt?+
The role is the identity you give the AI to steer its response. Instead of writing "explain SEO to me", write "you are a senior SEO consultant with 10 years of B2B experience". The AI will adopt the matching tone, vocabulary and depth of analysis. It's the fastest lever to move from a generic answer to an expert one.
Why specify the output format?+
Without an imposed format, the AI often replies in long paragraphs that are hard to use. By specifying "answer as a 3-column table: advantage, drawback, example", you get a directly usable result. Useful formats: bulleted list, comparison table, JSON, numbered steps, short paragraphs.
Can I use this builder with ChatGPT, Claude and Gemini?+
Yes. The generated prompt is a universal structured text that works the same way with ChatGPT (OpenAI), Claude (Anthropic), Gemini (Google), Mistral and any other LLM. The built-in AI optimization fine-tunes your wording to maximize answer quality, regardless of the target model.