Newsletter Insights — independent newsletter & sponsorship data across 23K+ newsletters
Browse all →Analysis, data, and opinions for founders, operators, and investors in Vertical AI. By the investment team at Euclid.
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4K
Above Median in AI
substack
AI
Stable
No measurable change this week
0.26%· ~11/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
1.0 posts/week avg
vs 1.0/week category avg
Free
Category avg: $28.56/mo
540
newsletters in AI
parafin.com
Above Median in AI
out of 540 newslettersPublishing Frequency
Weekly
Last published Mar 25, 2026
1.0 posts/week avg
