Surprises hidden in the Claude Opus 4.5 System Card

Anthropic released Claude Opus 4.5 today. You can read the official announcement , which has all the standard benchmarks, many of which it does well on. One interesting bit from the announcement caught my eye: The model’s capabilities outpace some of the benchmarks we use in our tests. ... The benchmark expects models to refuse a modification to a basic economy booking since the airline doesn’t…