Reward hacking newsletters

NewsletterFIT tracks 5 newsletters that cover Reward hacking as a primary topic, 4 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Epoch AI (19K) and Only Dead Fish (14K).

Updated Oct 31, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Epoch AI19K subscribers

    SubstackWeekly · last post 21 days ago

    Likely audience: AI researchers

  2. 2
    Only Dead Fish14K subscribers

    SubstackEvery two weeks · last post 14 days ago

    Likely audience: AI researchers and engineers

  3. 3
    episteme Engine—

    SubstackMonthly or less · last post 42 days ago

    Likely audience: AI safety researchers

  4. 4
    AGI Safety & Alignment Research at GDM—

    SubstackMonthly or less · last post Aug 19, 2026

    Likely audience: AI safety researchers

  5. 5
    Ivaylo Dimitrov's Blog—

    Substacklast post Jun 21, 2025

    Likely audience: AI researchers

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