Write a Weekly Newsletter Using AI and Substack

Use AI to produce a consistent, high-quality weekly newsletter without spending 3+ hours writing—while keeping it feeling personal and worth reading.

Prerequisites

• Substack account (free)
• Claude.ai or ChatGPT account
• Your newsletter's topic focus (1-2 sentence description)
• Content sources to draw from (your own content, curated reads, original thoughts)

Step 1: Define your newsletter format

AI-written newsletters fail when there's no clear structure. Before writing anything, define your standard format—the template your newsletter follows every issue.

Example format for a creator education newsletter:

1. [Opening personal note] – 50-100 words, something happening in your world this week
2. [Main piece] – 400-600 words, this week's primary topic or idea
3. [Tool of the week] – 150 words, one tool you've been using
4. [What I'm reading] – 3 links with 1-2 sentence annotations
5. [CTA] – One ask (subscribe, reply, share)

Write this format down. Stick to it. Readers subscribe because they know what they're getting.

Step 2: Gather your week's inputs

The best AI newsletters still have original input. Before prompting, collect:

• Personal observation: Something that happened to you this week relevant to your topic. Even one sentence.
• Main topic idea: The idea you want to explore in the main piece. A question, observation, or argument—not just "I'll write about X."
• Tool/resource: One thing you genuinely used this week.
• Reading list: 3 links you actually read and found worth sharing.

These inputs are what make the newsletter yours. The AI handles structure and drafting; you supply the substance.

Step 3: Generate the main piece

Paste your main topic idea into Claude with this prompt:

"Write a 500-word newsletter section for a creator education newsletter. Topic: [your idea]. Audience: [who they are]. Tone: [your tone descriptor—conversational, smart, direct, etc.].

Format:

• Start with one bold claim or observation (2 sentences)
• Then 3-4 short paragraphs developing the idea
• End with a practical takeaway or question the reader can sit with

Do not use: generic intros, bullet-point lists (prose only), clichés, or filler phrases like 'in today's landscape.'"

Edit the output: Add your examples, your specific experiences, any statistics you know to be accurate. The AI gives you the structure and flow; you add the specifics that make it worth reading.

Step 4: Generate supporting sections

Tool of the week:

"Write a 150-word 'Tool of the Week' blurb for [tool name]. Include: what it does in one sentence, the specific use case I used it for this week ([describe your use case]), one thing you wish you knew before starting, and where to find it. Conversational tone. No hype."

Reading list annotations:

"Write a 1-2 sentence annotation for each of these links that tells the reader why it's worth clicking and what they'll get from it. Write like a friend recommending an article, not a journalist:

1. [Title + URL]
2. [Title + URL]
3. [Title + URL]"

Step 5: Write the personal opening yourself

The opening personal note is the one section not to delegate to AI. This is where your personality comes through. Write it yourself in 50-100 words. It can be about anything relevant to your topic—a small win, a struggle, an observation. Readers open newsletters to hear from a person; give them that first.

Step 6: Assemble and edit in Substack

In Substack, create a new post. Assemble sections in order:

1. Personal note (your writing)
2. Main piece (AI draft, your edits)
3. Tool of the week (AI draft, your light edits)
4. Reading list (AI-annotated links, your verification that links are accurate)
5. CTA (write this yourself—30 seconds)

Read the whole thing aloud before publishing. Fix anything that sounds stiff or unnatural.

Step 7: Set up Substack scheduling and automation

Publish on the same day and time each week—consistency builds open rates. In Substack:

• Schedule: Post on [day] at [time] → readers form habits
• Email subject line: Test 2 options using Substack's built-in A/B subject line test
• Preview text: Write a single compelling sentence that extends the subject line

Time Breakdown

Compare to writing the whole thing from scratch: 2.5-4 hours.

Common Mistake: Sending AI Drafts Without Reading

The AI newsletter content that damages creator reputations is content sent without the creator reading it. AI confidently states inaccurate facts. AI sometimes contradicts things you've previously written. AI doesn't know that the tool you're recommending just had a controversial update.

Read everything. The leverage is in the drafting speed, not in bypassing editorial judgment.