AI marketing prompt generator Free AI prompts for marketing briefs, ChatGPT and campaigns

This AI marketing prompt generator turns what you know about your client and campaign into ready-to-paste instructions for ChatGPT, Copilot, Claude or any text assistant. It’s built for agencies, in-house teams and any marketer who writes briefs, editorial calendars, proposals, campaigns and client reports. Founderz made it; our Certificate Program in Artificial Intelligence and Innovation teaches professionals to apply AI at work.

  • Free
  • About 2 minutes
  • Runs in your browser
  • ChatGPT, Claude, Gemini and Copilot

At a glance

  • What it does: turns what you know about a client into an agency prompt.
  • Which tasks: 11 agency jobs, from client brief to report.
  • What you get: a prompt ready to copy, plus follow-up requests.

Marketing prompt generator

Tell us what you need and get a professional prompt for briefs, content calendars, proposals, campaigns and client reports. Only step 1 is required: everything else stays on Auto.

How to use this marketing prompt generator

To build your agency prompt, follow these steps. Only the first one is required: anything you skip stays on Auto.

  1. Start with the essentials. Pick an example (clear brief, calendar with purpose, defensible proposal, integrated campaign, creative with limits or report that decides) or describe the client, the goal, the deadlines and what is already approved. Then choose what you need to prepare and, if your context is short, turn on “Have the AI ask me questions before it starts”.
  2. Set client and goal. The client type (consumer brand, B2B company, ecommerce, local business or nonprofit), the main goal, from awareness to launch, and the main channel. Under advanced settings you set the account stage: discovery, production, optimization or renewal.
  3. Choose audience and format. Who the output is for (the client, client leadership, the agency team, creative and production or the sales team) and the format: tables, document, slides, one page, ready-to-use copy or an email to the client. Brand voice sits under advanced settings.
  4. Adjust data and quality. The material you will attach (client brief, brand guidelines, aggregated analytics, offer and terms) and the level of detail. Under advanced settings you get extra checks (claims review, scope and dependencies, UTM tagging, A/B variants, accessibility, consent and privacy), the response language and a field for anything the AI must respect.
  5. Generate and copy your prompt. Click “Generate prompt”, enter your email to see the whole prompt and copy it.

Eleven agency jobs. The “What do you need to prepare?” selector offers client brief, editorial calendar, services proposal, integrated campaign plan, creative brief, client results report, media plan, content and brand audit, community plan, launch strategy and an AI use guide for the agency.

Each job adds its own working method, such as the SMART objective and single-minded proposition of a brief, the hero, hub and help model of a calendar or the POEM model of a campaign. That lets you build instructions for every stage of the account, from discovery to renewal.

Example: content ideas for a product launch calendar

With the generator’s “Calendar with purpose” example (a natural skincare brand launching a sun care line in May, with no confirmed media budget), the prompt starts like this. It’s an excerpt: the button copies the full prompt.

ROLE
Act as the strategy director of a marketing agency, with experience in account management, planning, creative, media, content and measurement. You work from evidence: you separate what the client has approved, measured data, insight and hypothesis, and you never fill gaps with invented data. You plan content with topic pillars, the hero, hub and help model, and the funnel stage of each piece.

GOAL
Create an editorial calendar in which every piece has a purpose, an audience, a funnel stage, a channel and a way to measure it.

CONTEXT
Context provided by the user (treat it as your main source):
[START OF BRIEF]
We are a 12-person agency. The client is a natural skincare brand launching a sun care line in May. We need the Instagram, TikTok and blog calendar for April and May, with three social posts a week and two articles a month. The client has not yet confirmed the media budget or the formula claims.
[END OF BRIEF]

...

OUTPUT FORMAT
Deliver a table with columns Week, Channel, Pillar, Type (hero, hub or help), Stage (discover, consider, convert, retain), Topic and angle, Format, CTA, Metric, Owner, Approval status; then a list of key dates and the pieces that need client material.

...

The full prompt adds the B2C client, the launch goal and the Instagram or TikTok channel as context, the constraints on budgets, claims and promised results, six working steps, a sample table row and a final check before the answer.

The result: the assistant delivers a calendar where every piece has a pillar, a funnel stage, a metric and an owner, and marks anything that depends on the formula as [claim to validate] instead of inventing benefits.

Tips: how to use these prompts and save time

6 quick tips

  • Put what the client has already approved in the brief (dates, offer, tone, brand guide) and say what’s missing, because the instructions ask the AI to flag gaps, not fill them.
  • Describe the target audience and their pain points in the brief: the AI works from what you tell it, not from guesses.
  • If your agency has an approved assistant, paste the prompt there: it works the same in ChatGPT, Claude, Gemini or Copilot, and you can attach the brief or brand guidelines in the same message.
  • Use the “Brief” level of detail for a quick social media post, caption or email, and “Thorough” for proposals, media plans or reports that go to leadership.
  • To optimize the output, change one field between versions; you’ll see which setting improves the answer and can save that setup as part of your team’s workflow.
  • Before you paste anything, swap client names for “B2C client” or “skincare brand” and contract figures for ranges, especially in a tool your agency hasn’t approved.

Use cases: content marketing, social media marketing and email marketing

These are the marketing tasks where the generator saves the most time across a client relationship; pick the use case closest to yours:

  • Account kickoff A client brief or creative brief with objective, audience, message and approval criteria.
  • Content creation An editorial calendar for the website or blog, Instagram, TikTok or each LinkedIn post, with an owner and status for every piece.
  • New business An agency services proposal that separates confirmed facts from assumptions and promises no results.
  • Campaigns An integrated campaign plan along the funnel, from generating demand to converting interest, a media plan with review, email campaigns with consent or a launch strategy by channel.
  • Reporting A client performance report built from aggregate analytics data, with no causal claims without evidence.
  • Governance A guide for responsible AI use in the agency, covering data, consent and brand review.

What makes a good ChatGPT prompt for marketing strategy

A good prompt gives the AI what you’d give a new person on the account: a role, a specific task, the context of the client and the goal, the material it can use, the constraints (which claims, figures or data it can’t invent) and the output format. If any of the six pieces is missing, the AI fills the gap with assumptions and the copy comes out generic, or worse, with promises the client never approved. This tool asks for those pieces in order and adds brand, evidence and consent controls, so your marketing efforts start from facts.

More marketing prompts for SEO, sales and visuals: free tools and the best marketing prompts

If you’d rather start from finished templates, our guide to marketing brief and content calendar prompts collects prompts for ChatGPT to copy and adapt. For other roles and tasks, browse the best prompts and templates in the Founderz AI prompt library.

Why I built these generators

Paul Delaney

I’m Paul Delaney, and I lead search and AI visibility at Founderz. I’ve been designing AI prompts since the GPT-2 era and writing them every day since 2021, helping friends, colleagues and clients across many sectors, industries and roles get more out of their work with AI tools.

I built these generators to help people. AI is a wonderful tool: it doesn’t replace people, it helps them deliver more and better work. So this generator is designed to bring real value to everyone who uses it, whatever their prompting level. I built it with AI helping me write the code, which is the best proof of what AI lets you do.

Structured prompting, the technique behind this generator, is only one of many. Founderz’s Certificate Program in Artificial Intelligence and Innovation teaches it alongside many others, so graduates come out significantly upskilled and able to build tools like this for their own field.

Frequently asked questions

Is it free to use?

Yes, it’s free. Before it asks for anything, it shows you a preview with the first sections of the prompt. To see the whole prompt and copy it, enter your email and accept the Privacy Policy; receiving communications from Founderz is optional.

It only asks once per visit: any prompts you generate after that are shown in full.

Which AI tools can I use it in?

Any text assistant, such as ChatGPT, Claude, Gemini or Copilot, or the environment your agency has approved. The prompt uses clear sections (role, goal, context, constraints, steps and format) that all of them understand, so there is no tool to choose.

Can I get the output in Spanish or another language?

Yes. In the “Data and quality” step, under advanced settings, the “Response language” field sets the language: US, UK, Canadian or Australian English, Spanish (Spain or Latin America), Brazilian Portuguese, French, German, Italian, Dutch or a bilingual English and Spanish version. On Auto, the AI answers in the language of your context.

What happens to the data I type?

The tool doesn’t call any AI model: it combines your answers with Founderz templates in your browser. It only sends your email to Founderz when you ask to see the result, and usage stats record the options you picked, never your brief or the final text.

Can AI generate the final copy without client approval?

No. The instructions ask the AI to separate fact, hypothesis and recommendation, and to review claims, rights and consent before publishing, but it only works with what you give it. Your client and your team still sign off.

Certificate Program in Artificial Intelligence and Innovation

If you want AI marketing skills beyond a single prompt, the Founderz Certificate Program in Artificial Intelligence and Innovation covers prompting, no-code automation, agents and generative tools like ChatGPT, Microsoft 365 Copilot and Midjourney. It takes 3-4 months, is fully online and ends with the Microsoft + Founderz certification.

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