20 tested prompts across 4 stages. Works with ChatGPT, Claude, and Gemini.

Getting Gemini for Newsletter Writing right takes more than a single prompt. This 4-stage guide covers Plan your newsletter, Write the newsletter, Improve performance, and more, breaking the whole process into focused steps where each prompt builds on the last. Write engaging newsletters that subscribers open every time and refer to friends using Gemini. Every prompt is tested and runs in ChatGPT, Claude, and Gemini.
Stage 1
Start here to plan your next issue before writing any content.
Define the newsletter concept
Help me define a newsletter for [TOPIC/NICHE]. Cover: who it is for, the core value promise (what readers get every issue), cadence, and what makes it worth subscribing to.
Design the format
What newsletter format works best for [TYPE OF CONTENT]: long-form essay, curated links, weekly tips, Q&A, behind-the-scenes, or mixed? Recommend the right format for my audience of [DESCRIBE AUDIENCE].
Plan a content calendar
Create a 4-week newsletter content calendar for a [NICHE] newsletter. Each issue should have a distinct theme and angle different from the week before.
Write a welcome email
Write a welcome email for new subscribers to my newsletter about [TOPIC]. Include: what the newsletter covers, what to expect, when it arrives, and one piece of immediate value.
Design recurring sections
Create 3-5 recurring sections that appear in every issue of my [NICHE] newsletter. Name each section and describe what goes in it. The sections should give readers a reliable format they look forward to.
Stage 2
These prompts help you write each section of your newsletter clearly and engagingly.
Write a complete issue
Write a complete newsletter issue on [TOPIC] for [AUDIENCE]. Include: subject line, opening hook, 2-3 sections with headings, and a closing CTA. Under 600 words.
Write a compelling opening
Write 3 different newsletter openings for an issue about [TOPIC]. Each should hook the reader in 2-3 sentences and make them want to keep reading.
Write the main section
Write the main content section for a newsletter about [TOPIC]. Include: a clear heading, 3-4 paragraphs with distinct points, and a key insight pulled out as a callout.
Write subject lines
Write 5 subject line options for a newsletter about [TOPIC]. Each under 50 characters. Mix curiosity, benefit, personal address, and urgency approaches.
Write the closing and CTA
Write the closing section of my newsletter about [TOPIC]. Summarize the key insight in 1-2 sentences and end with a CTA (reply, share, read more). Under 80 words.
Stage 3
Use these prompts to improve performance.
Test subject lines
Score these subject lines for likely open rate: [LIST OPTIONS]. Evaluate each on: specificity, curiosity gap, length, and mobile preview. Rank them and explain.
Improve readability
Reformat this newsletter for readability: [PASTE NEWSLETTER]. Shorten paragraphs, add subheadings, remove filler, and improve the visual flow.
Add personality
This newsletter sounds generic: [PASTE NEWSLETTER]. Rewrite it with more personality: add a personal anecdote, use more direct language, and make it sound like a human wrote it.
Write a re-engagement email
Write a re-engagement email for subscribers who have not opened in [X MONTHS]. Be honest, warm, and give them a reason to stay. Make it easy to unsubscribe if they want.
Analyze what works
My best-performing newsletter issue was: [DESCRIBE IT]. What made it work? What patterns should I replicate? Suggest 3 follow-up issues with similar structural strengths.
Stage 4
These prompts help you grow your podcast audience and build a monetisation strategy.
Write a lead magnet
Write a lead magnet to grow my newsletter about [TOPIC]. Make it immediately useful, easy to deliver via email, and directly relevant to why someone would want the newsletter.
Write a referral section
Write a referral section for my newsletter encouraging subscribers to share it. Make it feel natural and give them a clear, easy way to forward it to someone who would value it.
Write a newsletter landing page
Write a short newsletter landing page for [NEWSLETTER NAME]. Include: headline, what subscribers get, 2-3 social proof signals, and an email capture. Under 200 words.
Write a sponsored section
Write a sponsored section for my newsletter promoting [PRODUCT/SERVICE]. Keep it honest, brief, and integrated naturally with the editorial content.
Write a year-in-review issue
Write a year-in-review newsletter issue for [NEWSLETTER NAME]. Highlight: best issues, key lessons, what is new next year, and thank subscribers for their support.
Gemini integrates with Google Workspace, making it easy to draft newsletters directly in Google Docs or Gmail. It is also useful for generating content ideas, writing multiple subject line variations, and improving readability of existing drafts.
Most newsletters perform best at 300-600 words. Long-form newsletters (1,000+ words) work for deep-dive essay formats with highly engaged audiences. Short newsletters (under 300 words) work for weekly tips or curated links.
Weekly is the most common and effective cadence. It builds habit without overwhelming subscribers. Daily works only for very specific audiences who explicitly opted in. Monthly can work for high-quality, long-form content but often loses subscriber attention.
Yes, with examples. Paste 3-5 issues you are happy with and describe your writing style. Gemini will mirror the structure and voice in its drafts. Always edit the output to add your personal perspective and specific examples.
Specific and personal over clever and vague. Subject lines that promise a specific, useful insight or answer a question the reader already has perform best. Avoid overpromising — subject lines that oversell train subscribers to ignore them.
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