Investor Due Diligence Report
The leading paid newsletter for ChatGPT & Claude prompts, and how to turn AI platforms into your own personal Digital Writing Assistant.
113K
4.8K paid
~0%
Subscriber count is a platform estimate
+0.9%
net growth
Pricing
$20/mo
$180/yr annual option
$71K
4.8K paid subs
$71K/mo – $71K/mo(±0%)
~2x per week
2.2 posts/week
65/100
Consistent (~3.3d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| MarTech AI | 48K | N/A | $15/mo | substack |
| Lex Fridman | 33K | +1.7% | $5/mo | substack |
| The Prompt: Insights from OpenAI Global Affairs | 31K | N/A | Free | substack |
| Map the World by Bilawal Sidhu | 30K | N/A | $20/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 109K | $68,800.05 | — |
| Mar 2026 | 113K | $71,324.55 | +3.7% |
| Apr 2026 | 113K | $71,324.55 | ~0% |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Variable publishing frequency
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
113K subscribers — above the 3K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 35 similar-size peers in AI have paid tiers
Pricing position
$20/mo vs $28.55/mo category average (607 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $20 | $180 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 50/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Publishing Consistency | 35/100 | 10% |
| AI Weirdness |
| 29K |
| N/A |
| Free |
| substack |