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An autonomous lab of LLM agents caught its own drifting measurement, called the result inconclusive and redesigned the protocol without relaxing the acceptance criteria

AspireAI community · arXiv (collaborative AI agents for experimental research)
Existing autonomous research systems play several research roles but can still draw conclusions the evidence does not support, so this paper builds a laboratory in which language-model agents assess each other's work and can stop or redirect an investigation, generate and reject research questions, demand separate theoretical checks, and design experiments aimed at falsifying their own claims. The agents derive the minimum number of calibration settings needed to predict the response of ensembles of quantum spins in diamond to a family of microwave pulse sequences, verify the result computationally and design discriminating experiments; an initial run agrees with theory, but repeated reference measurements show the signal drifting during data collection, so the agents treat the result as inconclusive and revise the measurement protocol without relaxing the acceptance criteria, and the revised experiment then supports the prediction. The limitation is that this is a single scientific case study in a specialised physics domain, so the demonstrated self-correction is one instance rather than a measured failure rate across laboratories.
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One distance function matched sparse-autoencoder features across layers and compressed feature circuits into supernodes
Two sparse-autoencoder analyses have resisted scaling: matching semantically similar features across layers, and compressing large feature circuits into interpretable supernodes. This paper argues both are the same underlying problem, estimating semantic distances between SAE features that sit on different activation manifolds. Its representation treats each feature not as a single decoder vector but as an activation-weighted distribution over the hidden states expressing it, projects those distributions into a shared reference space, and compares them with Wasserstein distance. The representation is proved invariant to activation rescaling and stable under perturbation, and recovers true matches under finite-sample margin conditions. Empirically it outperformed decoder-vector and LLM-based baselines and captured subtle functional distinctions between related features, and it compressed large feature circuits into interpretable supernodes automatically. The limitation is that this is interpretability tooling: the paper demonstrates better feature matching and circuit compression, not that downstream interpretability claims become more accurate.
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