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.
arXiv preprint arXiv:2512.03816 , year=
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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.