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Training AI systems to generate harder tasks hits a wall when testing each task requires expensive solver runs. PROPEL bypasses this by using a lightweight activation probe on a frozen model to predict task difficulty instantly, replacing costly solver trials and doubling the rate of useful frontier tasks across math, coding, and software engineering benchmarks.

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Hands-On With iOS 27's Siri AI

Apple's redesigned Siri, launching with iOS 27 this fall, is now a full AI chatbot that can search personal data, view your screen, and act across apps. It's in developer beta, requiring an iPhone 15 Pro or newer.

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Krisp: Voice AI for Meetings

Krisp is an all-in-one Voice AI app designed to make virtual meetings cleaner and more productive. It removes background noise, enhances voice clarity, and even converts accents in real time so speakers are always understood. It...