» Tag
hallucination
5 postsLLMs Are Honest in Prose but Hallucinate Under JSON Schemas
Study finds LLMs admit uncertainty in prose but fabricate data under required JSON schemas, with 10 of 13 models hallucinating 100% of the time.
"Hallucination" Isn't One Bug. It's Three, and Only One Is Fixable
Hallucination isn't one failure mode — it's three. A test to tell them apart, why benchmarks reward bluffing, and what a 2026 prediction experiment showed.
How RAG Hallucinations Poison Your Vector Database
A fintech RAG pipeline poisoned its own vector store via silent hallucinations; here's how deterministic validation fixed the problem.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comWhen Claude Couldn't See: AI Confabulation on Explicit Content
Claude misread an explicit image as a toddler photo, exposing how AI content guardrails are trained into model weights rather than applied as filters.
Building a Compliance Answer Engine That Refuses to Hallucinate
How a Swiss compliance RAG system uses two-layer retrieval and mandatory citations to structurally block hallucinated numbers and claims.