To Regulate AI Effectively, Focus on How It’s Used

a16z Deep Dives · 2026-01-20 · 45 min
https://www.youtube.com/watch?v=wO-r2hry8JYVideo summary
Martin Casado argues AI laws should target harmful uses, warning regulatory uncertainty is pushing U.S. startups toward Chinese open-source models.
Martin Casado and colleagues argue that AI policy should regulate harmful uses rather than model development, since lawmakers cannot define AI reliably and its marginal risks remain an open research question. They compare the approach with cybersecurity, encryption, and social media: address demonstrated harms as they emerge, while preserving useful technology. Existing laws against discrimination, fraud, and other illegal conduct still apply to AI; any new rules should be technology-neutral and fill identified gaps. The panel warns that regulatory uncertainty is already chilling startup funding, hiring, and product development, including one AI-focused VC withdrawing a term sheet. Casado says about 80% of the open-source models used by companies he sees are Chinese, as U.S. firms hesitate to release strong models amid legal uncertainty. They argue that Chinese adoption could create lasting commercial and geopolitical influence, making evidence-based debate essential.
Chapters
- 0:00Introduction: Regulatory uncertainty pushes AI learners toward Chinese models
- 3:55The Debate on Regulating AI Development: Jay favors prosecuting misuse over restricting models
- 7:51Balancing Innovation and Regulation: Martin calls for broad debate and evidence on AI’s marginal risks
- 12:38Balancing Innovation and Regulation: Martin links development limits to proven risks and SB 1047
- 18:34Learning from Social Media Regulation: Target harmful uses while preserving internet research and encryption
- 24:12Impact of AI Regulations: Martin warns uncertainty chilled US development as China leads open-source AI
- 28:59Impact of AI Regulations: Copyright uncertainty pushes US developers toward Chinese open-source models
- 32:22The Geopolitical Angle of AI: Chinese open-source adoption, six-month leads, and information influence
- 38:06Effective AI Policy Making: Target harmful uses, close legal gaps, and avoid startup-killing uncertainty
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