r/slatestarcodex↗
Slate Star Codex: In a Mad World, All Blogging is Psychiatry Blogging
Slate Star Codex was the former name for a blog by Scott Alexander about human cognition, politics, and medicine. In 2021, the name was changed to Astral Codex Ten: https://astralcodexten.substack.com/
84k subscribers176 posts / mo in Sep 2026 (incl. ~1% by known bots)134 authors / mosince 2014
r/slatestarcodex has 84k members (+14% over the last 12 months). It gets about 176 posts a month from 134 people. Top topics: AI Dangers & Ethics, AGI Discussions and Future of AI.
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How r/slatestarcodex has grown
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Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/slatestarcodex
Top topics
Share of the subreddit's posts
- AI Dangers & Ethics0.4%
- AGI Discussions0.4%
- Future of AI0.3%
- LLMs and AGI Progress0.3%
- Scott the Woz0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Substack
- arXiv.org e-Print archive
- Home \ Anthropic
- Openai
- Nature
Everything else about r/slatestarcodex
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research