How consistently a system produces correct and usable output across repeated runs, varied inputs and sustained load.

Asserted as a quality of the product, with no uptime figure, no error rate, no variance measure and no statement of what happens on the runs where it does not hold.

• A Claim Where a Number Belongs: Reliability is the one property engineering has always expressed numerically, and here it arrives as an adjective.
• Silent on Variance: The same input can produce different output, and the word covers that without mentioning it.
• House-Cleaning Reality Check: Like calling the boiler reliable while never saying how many mornings it failed to fire.

Love Island (Season 4): Georgia Steel declares herself one hundred percent loyal the day before Casa Amor, with the figure carrying all of the confidence and none of the evidence.

How consistently a system produces correct output across repeated runs.

“Enterprise-grade AI reliability underpins every deployment.”

“The same question returned a different answer on 6 of 100 repeat runs, and we publish that figure.”