KBF: Knowledge Boundary as Fingerprint for Language Model and Black-Box API Auditing 事件

KBF: Knowledge Boundary as Fingerprint for Language Model and Black-Box API Auditing arXiv:2605.29524v1 Announce Type: cross Abstract: Relay and reseller APIs increasingly intermediate access to large language models (LLMs), but users have no direct way to verify that a claimed endpoint is actually serving the advertised model. We introduce KBF, a low-cost black-box auditing protocol that fingerprints model APIs using stable numerical recall near the knowledge boundary. Across 16 production LLM