If Mythos actually made Anthropic employees 4x more productive, I would radically shorten my timelines

Better estimates of uplift at AI companies seem helpful

If Mythos actually made Anthropic employees 4x more productive, I would radically shorten my timelines Better estimates of uplift at AI companies seem helpful Ryan Greenblatt Apr 11, 2026 64 5 4 Share Anthropic’s system card for Mythos Preview says: It’s unclear how we should interpret this. What do they mean by productivity uplift? To what extent is Anthropic’s institutional view that the uplift is 4x? (Like, what do they mean by “We take this seriously and it is consistent with our own internal experience of the model.”) Edit : Anthropic has released more information about this survey and th

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• Alex Yun

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