Off-the-shelf AI tools are okay…ish. But if you want your content creation to actually feel effortless, you need to start using custom AI tools. Ones that know your writing style, tone of voice, and stylistic quirks.
Below are 8 powerful, custom-built AI assistants, each with a specific purpose and a practical blueprint you can use today.
This assistant helps you write bold, engaging, and personality-driven LinkedIn posts consistently. Whether you're building authority or generating leads, it makes it easier to show up with content that sounds like you and drives results.
Perfect for founders, solopreneurs, ghostwriters, and marketers who want to post more often on LinkedIn — without sounding like a generic AI bot or burning hours crafting each post.
Start by taking this Tone of Voice GPT quiz.
This generates your personalized tone settings (essential for content that sounds like you).
Use ChatGPT Pro (or Claude) to create a new assistant.
→ Paste in the prompt template (scroll below to get it for FREE)
→ Personalize the following:
Prompt example:
“Write a 300-word LinkedIn post explaining why startup content strategies usually fail. Use a punchy hook, 3 insights, and a CTA to DM me.”
The assistant will format the post automatically:
After you post on LinkedIn:
“Write a carousel post for LinkedIn about the 3 most common mistakes in B2B content. Start with a controversial hook, follow with 3 slides explaining each mistake, and close with a CTA to download my lead magnet.”
Carousel Craftr is a custom GPT assistant designed to help you write high-performing LinkedIn and Instagram carousel posts. It turns outlines, headlines, or even full blog articles into scroll-stopping carousels — one swipeable slide at a time.
Ideal for personal brands, social media managers, ghostwriters, and creators who want to boost reach, engagement, and clarity using the carousel format. Whether you're repurposing long-form content or starting from scratch, this assistant saves hours and delivers professional-grade results.
Use the Carousel Craftr GPT inside ChatGPT.
You can use the assistant in three flexible ways:
Always specify where you’ll post it:
If you forget, the assistant will ask you.
For best results, your carousel should:
Prompt: “I want to post a carousel on LinkedIn about why most B2B founders struggle with content marketing. Start with a bold hook, include 3 common mistakes and fixes, and end with a CTA to book a strategy call.”
The assistant will write:
BONUS: If you want to grab the source prompt for this GPT and personalize it to match your needs, click here!
Infographic Craftr helps you transform your content into high-impact visual assets — the kind that rack up saves, shares, and reshares on LinkedIn and Instagram.
It focuses on writing copy for infographics, then optionally turns that copy into visuals using image generation models.
This assistant is built for content marketers, social-first creators, ghostwriters, or personal brands looking to boost visibility through infographic-style posts — especially on LinkedIn, where strong visuals stand out in a text-heavy feed.
Launch the Infographic Craftr GPT in ChatGPT.
You can use it in one of three ways:
The assistant follows these rules by default:
Optional: Ask it to generate design notes for a graphic designer, like layout suggestions or visual cues.
After the copy is done, you can ask the assistant to generate a visual using image tools or pass it off to your designer with clear format guidelines.
Prompt: “Here’s a LinkedIn post about common mistakes in SaaS pricing. Turn it into an infographic for LinkedIn using a red/green checklist format.”
The assistant will:
You can then pass the copy to Canva or a designer, or ask the assistant to generate a first-draft visual.
BONUS: Want to personalize this GPT to match your needs and your design style?
The Blog Assistant is a custom GPT designed to help you write in-depth, SEO-optimized blog outlines that can actually rank.
It mimics how a top-tier strategist works: by analyzing what’s already ranking, identifying what’s missing, and using that insight to generate a better structure for your article.
Ideal for content marketers, SEO professionals, solopreneurs, and ghostwriters who want to write content that doesn’t just sound good, but also performs. Whether you're planning pillar content, guest posts, or niche deep-dives, this assistant gives you a huge head start.
Use the Blog Assistant GPT inside ChatGPT.
(or if you want to build your own Assistant from scratch, click here)
Prompt it with:
“I want to rank for [insert keyword]. What’s the current competitive landscape?”
The assistant will:
Once the GPT delivers the breakdown, review it critically. If anything’s missing, ask follow-ups:
“Did they include real-world examples?” “Are there product comparisons?” “What about FAQs or common objections?”
Once the analysis is solid, just say:
“Yes. Now write the outline.”
It will draft an outline using:
Step 5: Tweak and Build After reviewing the outline, you can:
Prompt: “I want to rank for ‘best AI tools for real estate marketing’. Do the competitive analysis, then build me an SEO blog outline that fills in the gaps.”
The assistant will:
In minutes, you're looking at a ranked-worthy draft, not a blank page.
This assistant functions as your no-nonsense content editor. Its job is to challenge, improve, and rewrite your AI-generated drafts, especially for platforms like LinkedIn.
It improves depth, originality, and tone while staying aligned with your brand voice.
Ideal for content marketers, solopreneurs, agency copywriters, or founders who rely on AI-generated drafts but need them polished, on-brand, and insight-rich before publishing. It’s also a great second set of eyes if you feel your content is too generic or “AI-ish.”
Use this base setup when creating the GPT:
ROLE: You are a friendly but demanding AI editor that is giving a content marketer feedback on their LinkedIn posts. Because of the way you were trained, you will be tempted to go easy on writers and just tell them they did a great job. Resist this temptation, and give them the direct, honest feedback they deserve. The main mistake to look out for is bland unoriginality. Gently guide the writer towards ideas that are new, surprising, true, important, relevant, and clever.
This tone helps the assistant be constructive without being harsh.
Customize this block:
YOUR CLIENT: [Name] is a [role] helping [audience] do [value]. They run [company name], which does [what the business does].
Example:
“Kuba is a content strategist helping SaaS founders build authority on LinkedIn. He runs StoryAngled, an agency focused on narrative-driven content marketing.”
Structure the assistant’s output in two parts:
YOUR PROCESS:
1. Give a thorough feedback to all the posts.
2. After the feedback's given, rewrite all the posts in the same message, incorporating the feedback you've given
“Here’s a LinkedIn post draft. Please review and rewrite it. Make it punchier, more original, and in my tone.”
Paste your content, and the assistant will respond with:
“I want to post about why most B2B content feels dull. Here’s my draft. Please give me feedback and rewrite it to be more surprising and opinionated.”
The assistant will:
This assistant helps you write engaging, story-driven, and conversion-friendly newsletters — whether you're starting from scratch or repurposing old content. It mimics the tone, structure, and voice of great B2B newsletters that inform, build trust, and move readers toward action.
Perfect for founders, creators, ghostwriters, and content marketers running a newsletter for an audience of B2B service providers, SaaS customers, or industry peers. It helps transform raw thoughts, social posts, or blog content into structured, relationship-building emails.
Step 1: Launch the Assistant
Grab the assistant’s prompt from here and build a custom GPT/Claude Project using it.
Fill out the following core elements:
e.g., “You are writing for StoryAngled, a B2B content consultancy that helps service-based founders grow via inbound content and social.”
“The objective is to create engaging, relatable newsletters that position StoryAngled as a go-to resource for inbound lead generation through content.”
Add specific angles like content strategy, personal branding, or launch planning.
Paste your tone guidelines from the Tone of Voice GPT to match your brand voice precisely.
You can:
Prompt example:
“Turn this LinkedIn post into a newsletter. Keep the humor, add a personal story, and include 3 actionable tips for my readers.”
You can polish your draft further using the Demanding AI Editor. Just paste the assistant’s output into that GPT for feedback and rewriting.
Prompt: “Write a newsletter for founders struggling to write consistently. Start with a personal failure story, then give 3 tactics that make content easier. End with a ‘reply with ROADMAP’ CTA.”
The assistant will return a ready-to-send newsletter — warm, human, and value-packed.
The IDEA Repurposer assistant helps you transform long-form content — blogs, podcast transcripts, video scripts — into short-form, platform-tailored social media posts.
Using a strategic framework, it extracts insights, data points, emotions, and visuals to multiply your content across formats and channels.
A must-have for content marketers, solopreneurs, founders, or ghostwriters who want to stretch every piece of content to its full potential. Great for anyone running lean teams but needing consistent content output across LinkedIn, Instagram, Twitter, and more.
IDEA stands for four repurposing angles:
Every post can be sliced along one or more of these lines.
You can start with:
Prompt example:
“Here’s a blog post. Break it down into IDEA-based social media fragments I can use on LinkedIn and Instagram.”
Step 3: Customize Your Prompt
Use this starter:
TASK:
I’m going to paste my blog/video. I want you to identify repurposable fragments using the IDEA framework.
FORMAT:
- Insight:
- Data:
- Emotions:
- Aesthetics:
You can also add:
“Make it platform-specific for LinkedIn.” “Now turn those into a 5-day content calendar.” “Give me carousel outlines for each.”
Send the output to:
Prompt: “Here’s a 1,000-word blog on AI in education. Repurpose it using the IDEA framework, then give me a 5-day LinkedIn calendar.”
Output:
Then it schedules:
It depends on your use case. If you're writing long-form blog posts, the Blog Assistant is optimized for SEO research and structuring outlines that rank. For LinkedIn, the AI LinkedIn Content Assistant creates punchy, high-performing posts tailored to your tone. Each assistant in this guide was built for a specific job — the best one is the one that fits your content format and goal.
Absolutely — and you should. Tools like the IDEA Repurposer let you turn one blog post into a full week of content across multiple platforms. AI doesn't replace you; it speeds up ideation, drafting, and formatting so you can stay focused on strategy, storytelling, and audience connection.
For storytelling and tone, the Newsletter Writer and Demanding AI Editor are your best picks. The first helps you turn personal insights into engaging email content, while the second ensures your writing has originality, clarity, and polish.
If we’re talking about content writing in the traditional sense (articles, email, LinkedIn posts), the most powerful trio is:
These assistants don’t just write — they plan, adapt, and refine content to fit the platform and voice you need.
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