Library.

“Artificial intelligence systems produce incorrect answers in 70% of evaluated cases.”

Available evidence does not establish a general 70% error rate for artificial intelligence systems. Reported rates vary dramatically by model, task, benchmark, and definition of error. A result near 70% appears in a narrow medical evaluation, but presenting it as broadly representative of evaluated AI answers is unsupported.

“In the first quarter of 2026, approximately 27% of production code merged into main branches was authored or substantially shaped by artificial intelligence systems.”

The ~27% figure is directionally plausible but overstates the certainty and universality of the underlying evidence. It appears to derive from a single self-reported developer survey (DX Newsletter, Q1 2026) across 500+ organizations, with no disclosed methodology for how "authored or substantially shaped" was defined or measured. Other available data points use incompatible definitions — "code written," single-company disclosures, or broader global estimates — and range from 25% to over 50%, making any single number highly sensitive to measurement choices.