Tomek Korbak(@tomekkorbak):Astra is much better than previous models at accomplishing difficult tasks without needing to use CoT. @AISecurityInst estimates that without CoT it can accomplish tasks that would take a human 30 minutes. This is a significant jump compared to previous models, which is concerning because no-CoT capability allows models to externalize their reasoning less and decreases the surface area we can use for monitoring.

Tomek Korbak

@tomekkorbak

ai safety @openai | previously: @AISecurityInst @AnthropicAI @nyuniversity @SussexUni

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Tomek Korbak@tomekkorbak

2026.09.03 19:36

Astra is much better than previous models at accomplishing difficult tasks without needing to use CoT. @AISecurityInst estimates that without CoT it can accomplish tasks that would take a human 30 minutes. This is a significant jump compared to previous models, which is concerning because no-CoT capability allows models to externalize their reasoning less and decreases the surface area we can use for monitoring.