Thought anchors don't transfer between models

TL; DR. Sentences deemed important in the CoT trace of one model are very ordinary when a different reasoning model reads the same trace. Their importance is model-specific and not a property of the text itself. In contrast, a hidden nudge translates across models: a CoT written by a model that silently followed a hint has a significant impact when teacher-forced into another model. However, it only works if the CoT trace already discusses the answer options. Otherwise, it has no effect within t...