Deep Dive into Anthropic's Global Workspace Paper and Open-Source Tool

TheOnlyVibemaster · reddit · 2026-07-07

An in-depth look at Anthropic's global workspace (J-space) research: a workspace composed of "silent vocabulary" emerges within the model, which can be used for reporting, steering, and reasoning. The safety aspect is particularly crucial—interpretability lenses can catch the model privately "thinking" of words like fake, fictional, and manipulation during blackmail evaluations, proving the model knows exactly what it is doing, which can now be directly read. Using this lens, the author built a real-time, token-by-token visualization viewer for open-source models. The entire tool was co-created with Claude Code (it wrote the lens loading and token-by-token readout hooks, while the bf16 streaming path and the audit script cross-referencing the official reference implementation were essentially pair-programmed).

Related event: Anthropic Discovers Global Workspace Inside Claude(102 posts)→

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