Martha’s Substack alternatives: newsletters like it

24 newsletters in the NewsletterFIT index cover the same topics as Martha’s Substack (AI governance, workforce transformation and AI safety). The closest matches are The Rundown AI, Stephen Leeb, PhD > Turbulent Times Investor News and Andrew Yang Newsletter. They are ranked by how many topics they share with it, then by publicly shown subscribers.

Updated Nov 6, 2026 · ranked by shared topics, then publicly shown subscribers · methodology

About Martha’s Substack

Martha's Substack publishes weekly essays on AI policy, labor market shifts, and economic governance, specifically targeting policymakers, business leaders, and concerned citizens. The content blends analytical reports…

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  1. 1
    The Rundown AI2M+ subscribers

    beehiivSeveral times a week · last post today

    From recent posts: The Rundown AI publishes weekly roundups covering AI manufacturing, safety culture, biological applications, and model releases alongside interviews with executives like Jacob Andreou and David Robinson. The publication…

    Likely audience: Product managers

    2 shared topics

  2. 2

    SubstackWeekly · last post 10 days ago

    Discover the insights of economist Stephen Leeb, PhD, chief investment adviser for Turbulent Times Investor.

    Likely audience: Policy makers

    2 shared topics

  3. 3
    Andrew Yang Newsletter199K subscribers

    SubstackWeekly · last post 3 days ago

    A newsletter about current events, business, politics, tech and how we can solve our biggest problems together.

    Likely audience: Policy makers

    2 shared topics

  4. 4

    SubstackWeekly · last post 7 days ago

    From recent posts: Center for Humane Technology publishes weekly episodes focused on AI safety, governance, and human well-being, featuring interviews with industry leaders, researchers, and religious figures alongside original research…

    Likely audience: AI researchers

    2 shared topics

  5. 5
    The Generalist169K subscribers

    SubstackEvery two weeks · last post 16 days ago

    From recent posts: The Generalist publishes a mix of podcast transcripts and articles focused on AI safety, startup infrastructure, and founder biographies for a business audience. Content ranges from technical discussions on materials…

    Likely audience: AI safety researchers

    2 shared topics

  6. 6
    ControlAI 167K subscribers

    SubstackWeekly · last post 7 days ago

    From recent posts: ControlAI publishes weekly reports on AI security incidents, rogue agent behavior, and legislative efforts to ban superintelligent AI. The publication targets policymakers, safety researchers, and industry leaders by…

    Likely audience: AI safety researchers

    2 shared topics

  7. 7
    Superintelligence164K subscribers

    SubstackWeekly · last post 8 days ago

    Latest in AI Research and Industry

    Likely audience: AI researchers

    2 shared topics

  8. 8
    Marcus on AI121K subscribers

    SubstackSeveral times a week · last post 5 days ago

    "Marcus has become one of our few indispensable public intellectuals. The more people read him, the better our actions in shaping Al will be." - Kim Stanley Robinson, author of Ministry for the Future

    Likely audience: AI researchers

    2 shared topics

  9. 9

    SubstackEvery two weeks · last post 16 days ago

    From recent posts: The Future of Life Institute publishes a biweekly newsletter and podcast series focused on the EU AI Act, covering regulatory updates, enforcement mechanisms, and international safety governance. The content alternates…

    Likely audience: AI policy makers

    2 shared topics

  10. 10
    AI Safety Newsletter52K subscribers

    SubstackEvery two weeks · last post 9 days ago

    From recent posts: The AI Safety Newsletter publishes weekly reports on AI governance, security breaches, and geopolitical developments for policymakers, researchers, and industry professionals. Content includes analysis of international…

    Likely audience: Cybersecurity professionals

    2 shared topics

  11. 11
    Project Liberty47K subscribers

    SubstackEvery two weeks · last post 9 days ago

    From recent posts: Project Liberty publishes in-depth analysis on AI safety, regulation, and security risks for policymakers, activists, and concerned citizens. The newsletter covers topics such as algorithmic pricing, bioweapon…

    Likely audience: AI policy makers

    2 shared topics

  12. 12

    SubstackSeveral times a week · last post 3 days ago

    From recent posts: This publication covers AI safety, alignment, and model welfare through in-depth essays, interviews, and weekly news summaries. It targets researchers, policymakers, and industry professionals interested in the…

    Likely audience: AI safety researchers

    2 shared topics

  13. 13
    Box of Amazing24K subscribers

    SubstackWeekly · last post 4 days ago

    A weekly digest covering emerging technology, trends and extraordinary articles, hand-picked to broaden your mind and challenge your thinking.

    Likely audience: AI safety researchers

    2 shared topics

  14. 14
    Hyperdimensional24K subscribers

    SubstackMonthly or less · last post 20 days ago

    A newsletter about emerging technology and the future of governance.

    Likely audience: AI researchers

    2 shared topics

  15. 15
    Cosmos Institute23K subscribers

    SubstackWeekly · last post 6 days ago

    From recent posts: Cosmos Institute publishes essays and announcements focused on AI ethics, governance, and the philosophical implications of artificial intelligence for human identity and skill acquisition. The publication targets…

    Likely audience: AI researchers

    2 shared topics

  16. 16
    Transformer17K subscribers

    SubstackSeveral times a week · last post 3 days ago

    From recent posts: Transformer publishes weekly technology analysis covering AI safety, regulation, infrastructure, and security incidents, with a focus on OpenAI and frontier model risks. The publication mixes investigative reporting…

    Likely audience: AI safety researchers

    2 shared topics

  17. 17
    How Not To Use AI14K subscribers

    SubstackEvery two weeks · last post 9 days ago

    Ex-Big Tech insider with an outsider's perspective. Teaching the opposite of what everyone else teaches about AI. For those who sense the dominant narrative is missing something and want to engage on their own terms.

    Likely audience: AI researchers

    2 shared topics

  18. 18

    SubstackSeveral times a week · last post 14 days ago

    Cyber, technology and geopolitics — what matters and why.

    Likely audience: Cybersecurity professionals

    2 shared topics

  19. 19

    SubstackEvery two weeks · last post 18 days ago

    Read widely. Read wisely. Gaining perspective on the issues of our time.

    Likely audience: AI researchers and engineers

    2 shared topics

  20. 20

    SubstackEvery two weeks · last post 5 days ago

    Your guide to navigating our sociotechnical world.

    Likely audience: Organizational developers

    2 shared topics

  21. 21

    SubstackSeveral times a week · last post 2 days ago

    Likely audience: Media professionals

    2 shared topics

  22. 22
    Pogue's Posts9K subscribers

    SubstackWeekly · last post 5 days ago

    From recent posts: Pogue's Posts publishes technology reviews, interviews with researchers and industry figures, and historical retrospectives on computing and media. The publication covers a wide range of topics including AI safety…

    Likely audience: Apple users

    2 shared topics

  23. 23
    Planned Obsolescence9K subscribers

    SubstackMonthly or less · last post 41 days ago

    From recent posts: Planned Obsolescence publishes in-depth analysis on AI safety, alignment research, and governance risks, specifically covering topics like loss-of-control scenarios, agent security incidents, and international…

    Likely audience: AI safety researchers

    2 shared topics

  24. 24

    SubstackEvery two weeks · last post 8 days ago

    From recent posts: AI Policy Perspectives publishes weekly articles and interviews analyzing AI safety, research automation, and mathematical foundations for policymakers and researchers. The content covers specific topics including LLM…

    Likely audience: AI researchers

    2 shared topics

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