NightVision recovers LLM hidden dimension to 23% average relative error (9% on MoE) and depth/parameter count to 53% on models >3B parameters using common-set prompting, spectral analysis, and TTFT under single-logit black-box access.
Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers) , pages=
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Black-Box Inference of LLM Architectural Properties with Restrictive API Access
NightVision recovers LLM hidden dimension to 23% average relative error (9% on MoE) and depth/parameter count to 53% on models >3B parameters using common-set prompting, spectral analysis, and TTFT under single-logit black-box access.