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The bottom line: This new Claude model is not yet capable enough to autonomously do AI research — but it's closer than any previous model, and Anthropic is nervous about it.

What's the "automated AI-R&D capability threshold"? Anthropic has defined a danger line: if an AI can independently do the work of AI researchers, that's a big deal — because then AI could start improving itself without humans in the loop. This assessment is asking: has this model crossed that line?

Why are they less confident than usual? With past models, the answer was a comfortable "no." This time, they're saying "no, but..." — it's a much closer call. They're hedging.

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The AI researchers designed tests to evaluate whether the model can do their real day-to-day work. They found out Mythos scored well on structured tests, but they know themselves that structured tests do not capture the non-linear, intangible aspects of AI research. So, interesting results, but AI can't replace them yet and AGI still far away.

That's how they reached this conclusion.