Anthropic reportedly counters chain-of-thought distillation with fake tool calls

Latent.Space says Anthropic has cracked down on chain-of-thought distillation attacks, a point it covered in a podcast on Opus 5.5.

ThePrimeagen says Anthropic has inserted fake tool calls to mislead distillers, which he says means reasoning traces obtained that way may contain harmful or wrong choices. The report relies on these two accounts, and the reports contain no Anthropic statement or further detail on the measures.