Anthropic just found something inside its Claude models that nobody designed and nobody expected. An internal structure the researchers are calling “J-space” appears to function like a cognitive workspace, sharing information across the model in ways that look eerily similar to how human brains handle conscious thought.
The research, published on July 6, represents a significant step forward in understanding what actually happens inside large language models.
What the J-space actually is
Anthropic’s researchers developed a new analytical tool called the “J-lens,” based on Jacobian mathematics, to peer inside Claude’s neural architecture. What they found was a distinct set of activation patterns that emerged spontaneously during training.
The researchers named this structure “J-space” and noticed it bears a striking resemblance to what neuroscientists call the “global workspace” in human cognition. Global Workspace Theory, a well-established framework in consciousness research, describes how the brain broadcasts certain information widely so multiple cognitive processes can access it simultaneously.
