Anthropic’s Research Shows Hard Limits on Search AI Accuracy, High Citation Error Risk, and Why Source Verification Breaks Down

https://brooksssuperbperspectives.overblog.fr/2026/03/why-claude-4.5-haiku-fast-can-report-a-25-hallucination-rate-practical-tradeoffs-and-what-to-do-about-them.html

Search AI Accuracy: What Anthropic’s numbers and independent audits reveal The data suggests that search-augmented language models do not currently deliver reliable, verifiable answers at a level most enterprise or research users assume