Citation-specific 'fabricated snippets' and reasoning-specific 'bullshitting' remain separately named, unconnected mechanisms in the literature

ai-safetyinterpretabilityhallucinationfabricationcitation-hallucinationbullshittingnlp-evaluation

No single term in the literature surveyed unifies "a model producing fluent, structured output decoupled from the thing it claims to reflect." Two named mechanisms sit closest to this shape, in different sub-literatures, and neither treats the other as an instance of its own term. claim-rao-wong-callison-burch-2026-fabricated-snippets-named-not-yet-systematically-studied documents a 2026 citation-reliability study naming "fabricated snippets" — quoted text not appearing at its cited page — as a failure mode distinct from URL hallucination, explicitly flagged by its own authors as requiring "separate systematic study." Separately, cot-faithfulness-anthropic-biology documents Anthropic's circuit-tracing work naming a structurally similar phenomenon — a model generating a plausible chain-of-thought step with no corresponding computation in its attribution graph — "bullshitting," borrowing Frankfurt's term for assertion indifferent to truth. The second case is mechanistically verified via the attribution graph; the first is named but unmeasured. No source found in this capture's search treats "fabricated snippet" and "bullshitting" as the same mechanism under different names, despite both describing output uncoupled from its claimed referent (a cited document; an actual computation).