METR’s randomized controlled trial (July 2025; updated February 24, 2026) with 16 experienced open-source developers found that participants using AI were 19% slower, not faster. Developers expected AI to speed them up, and after the measured slowdown had already occurred, they still believed AI had sped them up by 20%. These were not junior developers but experienced open-source maintainers. If even THEY could not tell in this setup, subjective impressions alone are probably not a reliable performance measure.
If you've used Claude Code for any real project, you know the dread of watching that "context left until auto-compact" notification creep closer. Your entire conversation, all the context the agent has built up about your codebase, your preferences, your decisions about to be compressed or lost.
One of our goals was to train a model that performs well across general vision-language tasks, while excelling at mathematical and scientific reasoning and computer-use scenarios. How to structure datasets for generalizable reasoning remains an open question—particularly because the relationship between data scale and reasoning performance can lead to starkly different design decisions, such as training a single model on a large dataset versus multiple specialized models with targeted post-training.。新收录的资料是该领域的重要参考
Every map is different. Every map is seeded and deterministic.。新收录的资料对此有专业解读
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Cryo-electron microscopy and massively parallel assays shed light on the mechanism by which DICER, a key enzyme in the RNase III family, cleaves RNA at precise locations to produce small RNAs.