Clauday.

Anthropic posted an update on Tuesday about Claude in drug development, covering six partners: BigHat Biosciences, Bristol Myers Squibb, Divergence Labs, Enveda, Generate Biomedici…

Anthropic published a study on Tuesday that should make anyone who says "there's a human in the loop" a little nervous. Fifty experienced analysts did a real causal-inference task …

A day after OpenAI claimed its model disproved the Exponential Time Hypothesis, Anthropic answered without a blog post or a tweet. A commit to its formal-math repo at 03:07 UTC on …

If you build agent harnesses, three papers from Tuesday's arXiv batch are worth an afternoon, because they push back on the instinct to add more structure. The first tests root-ca…

Four papers in Tuesday's arXiv batch land on the same uncomfortable point: checking each piece of an agent in isolation tells you very little about what the assembled agent will do…

The Classification of Finite Simple Groups is the theorem mathematicians call enormous for a reason: its proof is spread across hundreds of papers and tens of thousands of pages, w…

Two papers in Monday's arXiv batch look at what agents do when the normal path is blocked, and neither answer is "ask a human." ImpasseBench built twelve realistic environment blo…

Everyone is adding a second model to check the first one. Three papers in Monday's arXiv batch show how easily that checker gets steered by what it is shown. "Who Verifies the Too…

For two years agent evals scored the model and treated the harness as plumbing. Three papers in Monday's arXiv batch score the plumbing, and the plumbing turns out to decide a lot.…

Two papers in Monday's arXiv batch measured what happens to a coding agent's context when it gets compacted, and they agree on the uncomfortable part. The summary keeps what you as…