AI Prompt Templates: 40 marketing prompts for Claude, ChatGPT & every other AI
Pick a template. Fill in your topic, audience, and angle. Copy the finished prompt. Paste it into Claude, ChatGPT, or any LLM. Free, no signup.
Definition
An AI prompt template is a reusable instruction structure with variable placeholders (like {topic}, {audience}, {tone}) that you fill in before sending to an AI model. Good templates fix the output format, tone, length, and rules so only the inputs change, making outputs predictable and on-brand.
Categories
10 marketing categories
5 templates
LinkedIn Post
Plain-text LinkedIn posts with proven hooks and arcs.
5 templates
Twitter / X
Single posts, threads, and replies for X.
4 templates
Threads
Conversational Threads posts that fit the short-form feed.
5 templates
Instagram Caption
Captions for reels, carousels, and single image posts.
4 templates
Facebook Ad
Paid ad primary text, headline, and description copy.
4 templates
Google Ads
Responsive search ad headlines and descriptions.
4 templates
YouTube
Titles, descriptions, and chapter outlines.
4 templates
Blog Outline
Structured outlines for blog posts and SEO articles.
3 templates
Cold Email
B2B outreach openers, replies, and follow-ups.
2 templates
Reply / DM
Replies, DMs, and comment responses.
Template library
40 ready-to-use AI prompts across 10 marketing categories. Click any template to fill in your variables and copy the finished prompt.
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Prompt builder
Pick a template above to start filling in your variables.
No template selected yet. Pick one from the library above to start building.
Recipe
How to use an AI prompt template
Four steps from blank page to ready-to-paste prompt.
Pick a category
LinkedIn post, Twitter thread, Facebook ad, blog outline, cold email - pick the format you need to ship today.
Pick a template
Each template names a specific intent (thought-leader hook, contrarian take, PAS ad). Pick the one that matches your moment.
Fill the variables
Type your topic, audience, angle, and any specific context. The more specific (a number, a name, a recent event), the better the output.
Copy and paste
Hit copy. Paste into Claude, ChatGPT, Gemini, or any LLM. The output usually lands in one try with minor edits.
Why different
Not just a prompt list
Filled, not generic
Most prompt libraries are static text. This one has a builder. You type your specifics, the finished prompt updates live.
Tested on real models
Every template tested on Claude 4.7 and GPT-5.5 in May 2026. Format rules, length caps, and bans are tuned to what each model actually obeys.
Marketing-shaped
Not a 'top 100 prompts' list with one example per category. Five LinkedIn variants because LinkedIn matters more than 'AI roleplay'.
Skip the copy-paste. Run prompts inside your content workspace.
BrandBrain runs the same templates with your brand voice pre-loaded, stores outputs in your content library, and posts to LinkedIn, X, Threads, and Instagram from one place.
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Frequently asked questions
What is an AI prompt template?
An AI prompt template is a reusable instruction structure with variable placeholders (like {topic}, {audience}, {tone}) that you fill in before sending to an AI model like Claude or ChatGPT. Good templates fix the structure (output format, tone, length, rules) so only the inputs change, which makes outputs predictable and on-brand. A LinkedIn post template might fix the rules (no hashtags, max 220 words, no em dashes) and only ask you for topic, audience, and your personal angle.
How do you write a good Claude prompt?
Good Claude prompts have five parts: (1) the role or job to be done, (2) the inputs you provide (topic, audience, constraints), (3) the desired output format and length, (4) explicit rules and bans (no emojis, no em dashes, no hashtags), and (5) a concrete example or quality bar. Claude follows precise instructions well, so the more specific you are about format and forbidden phrases, the closer the output lands to usable. Templates pre-write parts 1, 3, 4, and 5 for you.
What variables should AI prompts include?
Most marketing prompts need 3 to 5 variables: the topic, the audience (with specificity), the tone or angle, and one piece of your own context (personal experience, data point, or example). Adding your own context is what turns a generic AI output into something on-brand. Avoid templates with 10+ variables - you will not fill them in and the prompt will not work better.
Are AI prompts the same for Claude and ChatGPT?
Mostly yes, with small differences. Claude tends to follow format and length constraints more strictly, so prompts with hard word counts and explicit bans (no hashtags, no em dashes) work especially well. ChatGPT can be slightly more verbose and benefits from explicit 'do not include' instructions plus an output-format example. Templates that work for one usually work for the other with minor tuning. All 42 templates on this page have been tested on Claude 4.7 and GPT-5.5.
How many AI prompt templates do I actually need?
Most marketers reuse 8 to 12 prompts every week: one or two for LinkedIn posts, one for X threads, one for Instagram captions, one for blog outlines, one for cold email openers, one for ad copy variants, and one for repurposing. Having 40+ available means you have a template for the moment a new format comes up (a YouTube Short, a comparison page, a Threads observation) without writing the structure from scratch.
Why do AI prompt templates use curly brace variables like {topic}?
Curly brace variables ({topic}, {audience}, {tone}) are a convention from software templating (Python f-strings, Jinja, Handlebars) that AI tools and prompt managers recognize. They make it clear which parts of a prompt are variable inputs and which are fixed instructions. You replace each {variable} with your specific value before sending. Most prompt management tools (PromptLayer, Helicone, Anthropic Console) use the same convention.
Can I use AI prompt templates with prompt caching?
Yes. Anthropic's prompt caching (active on all Claude API plans as of May 2026) lets you cache the fixed parts of a template across requests, reducing per-call cost by up to 90% on long templates. The variable parts (topic, audience, etc.) are sent fresh each time. Cache reads are billed at $0.50 per million tokens for Opus 4.7, versus $5.00 per million for fresh input. For high-volume marketing teams running the same template 100+ times per week, prompt caching pays back in days.
Where do I paste a finished AI prompt template?
Paste the finished prompt directly into the chat window of Claude (claude.ai), ChatGPT (chatgpt.com), Gemini (gemini.google.com), or any LLM with a chat interface. For high-volume use, paste it into Claude Code or the Anthropic API. BrandBrain runs the same templates inside the app and keeps the output in your content library with brand-voice memory, so you skip the copy-paste step entirely.
Are these AI prompt templates free?
Yes. All 42 templates on this page are free with no signup. The builder fills in your variables and outputs the finished prompt for copy-paste into any AI tool. For automated brand-voice writing, multi-platform posting, content scheduling, and skipping the copy-paste loop entirely, BrandBrain plans start at $29/month with a 7-day free trial.
What is the difference between a prompt template and a Claude Skill?
A prompt template is a single instruction with variables you fill in. A Claude Skill (Anthropic primitive, October 2025) is a folder containing a SKILL.md file plus optional scripts and reference files that Claude loads automatically when the task matches the skill's description. Skills are useful for repeated multi-step workflows (e.g. a full SEO research pipeline). Prompt templates are simpler and faster for one-off content tasks like writing a single post or ad. Most marketers benefit from a library of prompt templates first, and add Skills later for workflows they repeat 3+ times a week.
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