Anthropic Disables Claude's Internal Reasoning Space to Study AI Cognition

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Anthropic conducted an experiment by disabling Claude's so-called J-space, the internal zone where the AI model processes concepts and intermediate reasoning steps. Basic language functions such as writing coherently and recalling simple facts remained intact after the change. However, performance on complex tasks — including multi-step reasoning, rhyming, summarization, and knowledge transfer — noticeably declined. Researchers also found that internal thoughts could be manipulated, with substituting one concept for another causing the model's factual outputs to change accordingly. The experiment is seen as an early step toward understanding how to separate automatic processing from controlled, deliberate thinking in AI systems.

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