"When Claude Opus 4.6 and Mythos Preview were undergoing safety testing, NLAs suggested they believed they were being tested more often than they let on"

What does it mean for a pile of matrix algebra to 'believe' something?

I would presume this is shorthand for something like "generated text which would normally be classified as belief". I guess a more ridiculous response could be "what does it mean for a miserable pile of secrets to believe something?", lol.