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Cas (Stephen Casper)
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Cas (Stephen Casper)

@StephenLCasper
Computer scientist working on AI safeguards and gov research. Assistant professor @Kennedy_School @Harvard. stephencasper.com
Cambridge, Massachusetts, USA
stephencasper.com
Joined March 2016
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    Cas (Stephen Casper)
    @StephenLCasper
    Mar 24
    I'm extremely excited to be on the organizing committee this year for my favorite workshop ever! Submissions (up to 8 pages) are due April 24! Co-submission with ICML and NeurIPS is encouraged! taigr-workshop.com
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    Technical AI Governance @ ICML 2026
    @taig_icml
    Mar 24
    🚨📢Announcing the second Technical AI Governance Research (TAIGR) workshop @icmlconf. Accepting submissions (up to 8 pages) until April 24 on technical topics in AI governance! #icml2026
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    Cas (Stephen Casper)
    @StephenLCasper
    Aug 12
    🧵🧵🧵I think that technical safety for closed-weight AI systems is, at this point in time, a solved problem. When I say this, some people look at me like I'm crazy, so let me explain here what I mean by "safety", what the SOTA currently is, and what 6 things can do the trick.
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    Cas (Stephen Casper)
    @StephenLCasper
    Aug 11
    I think this blueprint is exceptionally good. There are a few details I wish it would have added, but this is my favorite policy proposal (if you could call it that) to date related to AI standards/assurance that I have seen.
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    Americans for Responsible Innovation
    @americans4ri
    Aug 10
    NEW: Today ARI released a blueprint for federal AI governance, including three pillars that promote safe frontier AI development: ✅ Standards set by the government ✅ Independent assurance they are met ✅ Transparency into frontier AI development ari.us/frontier-frame…
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    Cas (Stephen Casper)
    @StephenLCasper
    Aug 11
    This 0% AI-generated paper is now up on arXiv 10 months after we submitted and 5 months after it was accepted to TMLR. Those 10 months of hold, review, and appeal were ultimately pointless. I'm thankful it's up, but I wish that arXiv weren't so broken.
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    arxiv.org
    Open Technical Problems in Open-Weight AI Model Risk Management
    Frontier AI models with openly available weights are steadily becoming more powerful and widely adopted. However, compared to proprietary models, open-weight models pose different opportunities...
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    Cas (Stephen Casper)
    @StephenLCasper
    Aug 11
    If AI companies are serious about pauses, then they should put out documents proposing a 'pause framework' in which they describe what they would do to slow down, how they would make these actions verifiable to third parties, and under what conditions they would do it.

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