How to Write A Beehiiv Newsletter with AI (Insanely Fast)

By Matt Giaro

Write a Beehiiv newsletter with AI.

✦ FREE EMAIL COURSE: 5 Secrets to create meaningful (and personal) content 10X faster with AI

Everyone and their dog are starting Beehiiv newsletters.

But the brutal truth?

Most Beehiiv newsletters are forgettable garbage.

Same ideas. Bland writing. Zero personality.

I’ve been writing newsletters for over a decade, and I’ve been starting to use AI to lately write content that reflects my ideas and style

Here are some of my best tips to write engaging Beehiiv newsletters with AI.

AI as your newsletter superpower (Not your replacement)

AI won’t make your newsletter sound like everyone else’s. Used correctly, it’s like having a writing partner who works 24/7 and never asks for coffee breaks.

Here’s what AI can actually do for your Beehiiv newsletter:

  • Demolish writer’s block with instant content frameworks
  • Uncover trending topics your audience actually cares about
  • Craft subject lines that make fingers itch to click
  • Transform your rambling thoughts into crystal-clear prose
  • Generate multiple angles for a single idea

What it can’t do: Create that irreplaceable YOU factor. Your weird analogies. Your industry war stories. Your controversial takes.

That’s still 100% on you – and it’s what your subscribers are really looking for.

The brutal truth about newsletters worth reading

Want to know why people ignore most newsletters?

They’re boring.

The newsletters that get devoured follow one simple rule: They deliver ONE valuable insight per issue.

Not a Wikipedia article. Not a brain dump. ONE powerful idea that sticks.

The formula that works:

  • Hit a nerve with a problem your readers are losing sleep over
  • Offer a perspective they haven’t considered
  • Show them exactly how to implement it with concrete examples

That’s it. No fluffy intros. No trying to sound smarter than you are. Just valuable insights delivered with personality.

Finding your newsletter’s obsession

Before touching AI, you need to get crystal clear on your newsletter’s reason to exist.

This is where 90% of creators crash and burn. They try to be everything to everyone, and end up being nothing to nobody.

Ask yourself these questions (and be ruthlessly honest):

  • What specific problem can I solve better than almost anyone else?
  • What pisses me off about conventional wisdom in my industry?
  • What questions do people repeatedly come to me with?

Use tools like Perplexity AI or ChatGPT with Deep Research to validate your focus. Look specifically for:

  • Questions that keep coming up without good answers
  • Pain points with high emotional charge
  • Gaps where existing newsletters are dropping the ball

Engineering a Beehiiv newsletter structure that hooks readers

Your newsletter structure isn’t just organization – it’s psychological engineering.

Most newsletters fail because they meander like a drunk tourist without a map.

Here’s the framework that keeps readers glued to your every word:

The Pattern Interrupt (Your Hook)

  • Challenge a commonly held belief
  • Share a shocking statistic or result
  • Present a counterintuitive idea
  • Make them feel seen with a common pain point

The Value Promise

  • What specific breakthrough they’ll have by reading
  • Why this matters more now than ever
  • What makes your approach different from the noise

The Credibility Builder

  • Your personal experience with this problem
  • Results you’ve helped others achieve
  • Data that backs up your approach

The Knowledge Core

  • Your central insight (the “aha” moment)
  • 2-3 supporting concepts that reinforce it
  • Real examples that make it concrete

The Instant Win

  • One action they can implement in 10 minutes or less
  • What specific result this action will create
  • When they can expect to see progress

Use AI for your newsletter outline

Here’s the exact prompt that generates killer outlines (copy this directly):

Create a Beehiiv newsletter outline about [TOPIC] for [SPECIFIC AUDIENCE SEGMENT].

Their current situation: [PAIN POINT/CHALLENGE]
Their desired outcome: [WHAT THEY WANT]

Structure must include:
1. A pattern-interrupting hook that challenges conventional wisdom
2. A bold promise that addresses their specific situation
3. A credibility-building story or data point
4. ONE central insight broken into 2-3 supporting concepts (no more)
5. A 10-minute action step that delivers immediate results

Make it provocative, conversational, and slightly irreverent in tone.

Strategic moves for 10x better newsletter outlines

Do opposition research

  • Analyze competing newsletters with AI
  • Identify what topics they’re missing
  • Find angles they’re afraid to take

Ruthlessly focus

  • If it doesn’t directly support your main insight, cut it
  • When tempted to add “just one more point,” create another issue instead
  • Aim for depth over breadth every time

Build content architecture

  • Create placeholders for personal stories (these MUST come from you)
  • Mark sections where your unique voice needs to shine
  • Plan strategic transitions between sections

The transformation: Generic vs. Compelling

Generic (What most create):

Topic: Productivity Tips
- Introduction to productivity
- Time management techniques
- Apps and tools
- Goal setting
- Healthy habits
- Work-life balance

Compelling (What stands out):

Topic: Why Your To-Do List Is Making You Less Productive (And What To Do Instead)

Pattern Interrupt:
- The shocking study showing to-do list completers accomplish 23% LESS meaningful work
- Why checking off tasks gives a false sense of productivity

Bold Promise:
- How to accomplish your most important work without traditional to-do lists
- The "impact multiplier" method that 10x's your real output

Credibility Builder:
- How I went from 12-hour workdays to 5-hour focused sessions while doubling revenue
- The breaking point that forced me to change everything

Central Insight: Outcome-based planning beats task-based planning every time
  1. Why your brain loves the wrong metrics
  2. The biological reward system hijacking your productivity
  3. The 3-category system that eliminates busywork

10-Minute Action:
- The "impact audit" template that reveals what you should stop doing immediately

Which AI should you choose to write your Beehiiv newsletter?

Here are the only tools worth your time:

Claude (The Style Mimic)

  • Unmatched at capturing and maintaining your voice
  • Excels at deep, nuanced explanations
  • Handles complex industry topics without oversimplification

ChatGPT (The Idea Machine)

  • Unbeatable for rapid content ideation
  • Master of subject line variation
  • Excellent for reframing concepts for clarity

Advanced moves for power users:

  • Feed the AI examples of your best writing to clone your style
  • Use specific audience psychographics, not just demographics
  • Leverage research tools like Perplexity for finding fresh angles

From blank page to first draft in 5 minutes

Your first draft should be fast and flawed. Perfection comes later.

Copy this exact prompt for results that don’t sound AI-generated:

Write a Beehiiv newsletter about [TOPIC] for [SPECIFIC AUDIENCE].

Must include:
- [MAIN INSIGHT - be specific]
- [PERSONAL STORY PLACEHOLDER - I'll add this myself]
- [SUPPORTING CONCEPT 1]
- [SUPPORTING CONCEPT 2]
- [ACTION STEP]

Writing guidelines:
- Use short, punchy sentences mixed with occasional longer ones
- Include 2-3 places for personal examples (mark with [YOUR STORY])
- Write in a conversational, slightly provocative tone
- Use metaphors and analogies
- Length: 800-1200 words

Generate the draft, then let it sit for at least a day. Your brain needs distance before editing.

Making the AI output actually sound like YOU

This is where mediocre newsletters become remarkable.

AI gives you the skeleton; you add the flesh and soul:

  • Insert your personal stories where marked
  • Add industry-specific examples only you would know
  • Inject your verbal quirks and catchphrases
  • Cut anything that sounds “too perfect” or academic
  • Verify every fact and claim (AI loves to make stuff up)

The rule: If your best friend wouldn’t recognize your voice in the writing, it’s not ready to send.

How To Write Your Newsletter Subject Line

Your brilliant newsletter is worthless if nobody opens it.

The subject line is the gatekeeper to everything you’ve created. Get it wrong, and your open rates plummet faster than bitcoin in a bear market.

Most creators either:

  1. Spend hours agonizing over the perfect subject line
  2. Slap something generic at the last minute
  3. Use clickbait that destroys trust when the content doesn’t deliver

This is where AI becomes your secret weapon.

The 4-3-2-1 Subject Line Formula

The best subject lines follow a pattern that AI can help perfect:

4 – Words that trigger emotion (curiosity, fear, desire, surprise)
3 – Words that establish relevance (industry, problem, outcome)
2 – Words that create urgency (time, opportunity, limitation)
1 – Word that personalizes (you, your, [industry], [role])

Here’s the exact prompt that generates subject lines with 35%+ open rates:

Generate 15 email subject lines for my Beehiiv newsletter about [TOPIC].

My audience consists of [SPECIFIC AUDIENCE DESCRIPTION].
The main insight of this newsletter is [CORE INSIGHT].

Create subject lines that:
1. Are 5-9 words long (for mobile optimization)
2. Include at least one emotion-triggering word
3. Create curiosity without being clickbait
4. Convey specific value or insight
5. Feel personal and direct
6. Vary in structure (questions, statements, bold claims)

Include a mix of approaches:
- Problem-focused
- Solution-focused 
- Contrarian takes
- Specific results/numbers
- Time-sensitive framing

Subject Line Templates AI Can Customize

AI excels at filling in powerful templates. Here are five patterns that consistently drive opens:

The Mistake Pattern: “The [Common Practice] Mistake Costing You [Desired Outcome]”

The Contrarian Take: “Why [Common Advice] Is Wrong About [Topic]”

The Specific Result: “How [Audience Type] Achieved [Specific Result] in [Timeframe]”

The Curiosity Gap: “The Unusual [Method/Tool] That [Solves Problem]”

The Direct Question: “Are You Making This [Topic] Mistake?”

A/B Testing

The real power move? Using AI to craft multiple variations for testing.

Beehiiv’s built-in A/B testing feature becomes exponentially more powerful when you:

  1. Generate 10-15 subject line options using AI
  2. Filter down to the strongest 2-3 options
  3. Test them on small segments of your list
  4. Let AI analyze the winners for patterns

Here’s a prompt to analyze your successful subject lines:

I'm going to share my 5 highest-performing email subject lines and their open rates. Please analyze them for patterns and tell me:
1. Common words or phrases
2. Emotional triggers used
3. Length patterns
4. Structure similarities
5. Recommendations for future subject lines based on this data

Subject lines and open rates:
1. "[SUBJECT LINE 1]" - [OPEN RATE]%
2. "[SUBJECT LINE 2]" - [OPEN RATE]%
3. "[SUBJECT LINE 3]" - [OPEN RATE]%
4. "[SUBJECT LINE 4]" - [OPEN RATE]%
5. "[SUBJECT LINE 5]" - [OPEN RATE]%

Subject Line Disasters to Avoid

AI sometimes generates these mistakes. Delete immediately if you see these patterns:

The Overpromise “The Secret That Will Make You an Overnight Millionaire”

Subject lines that promise unlikely or extreme outcomes destroy credibility.

The Generic Snoozer “May Newsletter Update”

Nothing says “ignore me” like a subject line that sounds like an automated message.

The Keyword Stuffing Monster “Make Money Online Fast Cash Income Strategies Tips”

AI sometimes tries to jam in too many keywords. This screams spam and triggers filters.

The Bait-and-Switch “Shocking Industry Scandal Revealed!”

If your newsletter doesn’t actually contain shocking revelations, you’ll lose trust instantly.

The 5-Second Subject Line Test

Before sending any AI-generated subject line, run it through this quick test:

  1. Would this make ME open if I saw it in my inbox?
  2. Does it accurately represent what’s inside the newsletter?
  3. Does it feel like something a real person would write?
  4. Would I be comfortable with this subject line being the only thing someone remembers about my brand?
  5. Does it avoid spam trigger words? (free, guarantee, limited time, etc.)

If it passes all five checks, you’ve got a winner.

Remember: The perfect subject line isn’t the cleverest one—it’s the one that gets opened AND sets the right expectations for your content.

The uncensored truth about your AI-generated beehiiv newsletter

90% of newsletters fail within three months because creators overcomplicate everything.

AI can handle the heavy lifting of structure and clarity while you focus on what matters: your unique insights that no algorithm can replicate.

Your readers don’t give a damn how you produce your newsletter. They care if it changes their thinking, solves their problems, or entertains them.

Stop overthinking. Stop procrastinating. Stop trying to be perfect.

Just ship the damn newsletter.

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