Welcome to another edition of The Sequence. Today, we are diving into what is undoubtedly the most fascinating, illuminating, and slightly unnerving AI document of the year: the system card for Anthropic's Claude Mythos Preview. For the last few years, the frontier AI development loop has been highly predictable: scale up the compute, implement some algorithmic breakthroughs, train a new state-of-the-art model, and push it to an API or chat interface for the world to play with. We benchmark it, we build products around it, and we wait for the next iteration.
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