Astral Codex Ten

Substacknewsletter · by Astral Codex Ten · English

P(A|B) = [P(A)*P(B|A)]/P(B), all the rest is commentary.

Audience
Not shown publicly
We show a dash rather than guess
Publishing
Weekly
13 posts indexed in the last 90 days
Last post
Oct 13, 2026
19 days ago
Likely audience
AI researchers
Inferred from post content

Astral Codex Ten is a Substack newsletter by Astral Codex Ten covering AI safety, Community events and Effective Altruism. NewsletterFIT indexed 13 posts from it in the last 90 days, most recently on Oct 13, 2026.

Topics

Recent posts

  • Open Thread…
  • Your Book…
  • Ballots Everywhere:…
  • Top Forecasters…
  • Hidden Open…
  • An Open…

Sponsors detected

No sponsored posts detected in the last 180 days of indexed posts.

Detected automatically from posts marked as sponsored. Detection can miss or misread placements.

See the full picture on Astral Codex Ten

Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.

Start 7-day Pro trial

Similar newsletters

Ranked by how many topics they share with Astral Codex Ten.

  • User Mag98K subscribers

    SubstackWeekly · last post 34 days ago

    Likely audience: AI researchers

    2 shared topics

  • The Dossier56K subscribers

    SubstackMonthly or less · last post 30 days ago

    Likely audience: Tech industry leaders

    2 shared topics

  • Bentham's Newsletter10K subscribers

    SubstackWeekly · last post 20 days ago

    Likely audience: AI researchers

    2 shared topics

  • SubstackEvery two weeks · last post 12 days ago

    Likely audience: Philanthropists

    2 shared topics

  • The Wayback7K subscribers

    SubstackEvery two weeks · last post 11 days ago

    Likely audience: art enthusiasts

    2 shared topics

  • Good Thoughts6K subscribers

    SubstackEvery two weeks · last post 27 days ago

    Likely audience: Policy analysts

    2 shared topics

  • UPDATE YOU!3K subscribers

    SubstackEvery two weeks · last post 20 days ago

    Likely audience: Policy makers

    2 shared topics

  • Positive Sum2K subscribers

    SubstackEvery two weeks · last post 24 days ago

    Likely audience: AI safety researchers

    2 shared topics

Compiled from public pages · refreshed Oct 14, 2026 · How NewsletterFIT collects and labels data