An open letter to Dario: if you mean it, open the weights
An open letter to Anthropic's CEO argues that the only way to truly slow down AI development is to mandate open weights for all public-facing models. The author contends that current regulatory proposals favor large incumbents and lead to regulatory capture.
Why it matters
This highlights the growing tension between AI safety advocates, industry leaders, and the potential for regulatory frameworks to entrench corporate monopolies.
You published We Must Pace the Frontier today, which committed Anthropic to embedded third-party evaluators and asked governments to require every other frontier company to match. Sam Altman agreed within hours. 1
I believe you're being sincere, so I'm asking you to call for a different law, one that would actually slow things down, even though it would require real sacrifice on your part.
Any AI model a company offers to the public has to be released as open weights.
This wouldn't cover every model you train, just the ones you make available to the public. Internal and research models wouldn't be affected, and governments could still get access to unreleased models.
But Anthropic would have to publish Fable's weights the day it was released, OpenAI would have to do the same with Astra, and so would everyone else.
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