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A Recurrent LLM Is Quite Easy to Interpret but Very Hard to Steer

The study explores the Ouro-1.4b-thinking recurrent language model, focusing on its interpretability and steerability. It finds that while the model is broadly interpretable using logit lenses and linear probes, steering it is challenging unless interventions are applied in the final loop. This raises safety concerns about potential misalignment in recurrent models. The research involves experiments on programming and math tasks, analyzing residual streams across multiple layers.

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PublishedSeptember 24, 2026nesiacel
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This research highlights potential safety risks in recurrent language models, emphasizing the difficulty of steering them effectively unless interventions are applied in the final loop, which could be exploited in misaligned systems.

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