List of Excerpts from Mythos model card. Tried to include interesting things, but also included some boring to be expected things. I omitted some things that were too long.

Also wanna note,

that this list of excerpts highlights "concerning" things above the rate at which they occur in the document.
I frequently say "Anthropic seems to think ..." or "their theory appears to be that ...", and this doesn't mean I think the opinion is unsubstantiated or that they are wrong, its just a natural way to phrase things for me.

Capability Stuff

Anthropic Staff Opinion About whether Mythos is a drop-in replacement for entry Research Eng/Scientist

We did an n=18 survey on Claude Mythos Preview's strengths and limitations. 1/18 participants thought we already had a drop-in replacement for an entry-level Research Scientist or Engineer, and 4 thought Claude Mythos Preview had a 50% chance of qualifying as such with 3 months of scaffolding iteration. We suspect those numbers would go down with a clarifying dialogue, as they did in the last model release, but we didn’t engage in such a dialogue this time.