There is randomness in LLMs. Both papers authors probably ran the bench 1-N times. Depending on that, they might select an average, max, least, etc. They might also have discarded outliers.
Like the other person said 5% variation is probably expected
Normal commercial insurance is much more expensive, let alone ambulances.
And don’t forget, the EMS employees need malpractice insurance and the company needs liability and workman’s comp insurance above the normal commercial levels
Like the other person said 5% variation is probably expected