Best AI Alignment and Safety Newsletters in 2026
NewsletterFIT tracks 5 newsletters that cover AI alignment and safety as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are Sustain What (11K), Samir Varma (2K) and BlockChannel (2K).
Updated Nov 14, 2026 · sorted by publicly shown subscribers · methodology
- 1Sustain What11K subscribers
SubstackSeveral times a week · last post 11 days ago
A regular dose of sanity and substance amid the spin around climate and sustainability challenges.
Likely audience: environmental journalists
- 2Samir Varma2K subscribers
SubstackWeekly · last post 12 days ago
Physicist, author, inventor, and hedge fund manager. Beatles & Pink Floyd fan. I love AI, physics, science, markets, economics, squash, guitar. My book, The Science of Free Will, https://amzn.to/4aMQJD1 is out now!
Likely audience: AI safety researchers
- 3BlockChannel2K subscribers
SubstackEvery two weeks · last post 23 days ago
From recent posts: BlockChannel publishes essays, explainers, and podcast interviews on crypto protocol development, governance, capital formation, AI and crypto convergence, and DeFi topics such as monetary streaming protocols. It serves…
Likely audience: blockchain developers
- 4
SubstackMonthly or less · last post 8 days ago
From recent posts: This publication covers brain preservation science, AI-driven biomedical research, and end-of-life policy, targeting researchers, clinicians, and thinkers in the preservation community. Content mixes technical articles…
Likely audience: AI safety researchers
- 5
SubstackMonthly or less · last post 57 days ago
Hyuni's Business Insight
Likely audience: AI researchers and engineers
Latest posts from these newsletters
- Experiments that…preservinghope
- Music Matters…Sustain What
- If Claudes…Samir Varma
- A Musical…Sustain What
- Good News…Sustain What
- What If…Samir Varma
- New Music…Sustain What
- The Case…BlockChannel