{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Privileged Bases In The Transformer Residual Stream","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/0a3f197e-90f3-4a99-b4c9-0699e354f616","json_url":"https://onlylabs.fyi/signals/0a3f197e-90f3-4a99-b4c9-0699e354f616/signal.json","generated_at":"2026-06-11T04:18:00.699759+00:00","org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/anthropic","dossier_json_url":"https://onlylabs.fyi/labs/anthropic/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/0a3f197e-90f3-4a99-b4c9-0699e354f616","signal_json":"https://onlylabs.fyi/signals/0a3f197e-90f3-4a99-b4c9-0699e354f616/signal.json","source":"https://www.anthropic.com/research/privileged-bases-in-the-transformer-residual-stream","lab_dossier":"https://onlylabs.fyi/labs/anthropic","lab_dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis":"https://onlylabs.fyi/analysis/anthropic","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/talking","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml","data_business":null},"answer_pack":{"answer":"Anthropic published Privileged Bases In The Transformer Residual Stream. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Privileged Bases in the Transformer Residual Stream \\ Anthropic Interpretability Research Privileged Bases in the Transformer Residual Stream Mar 16, 2023 Read Paper.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","signal_desk":"talking","source_context":{"source_url":"https://www.anthropic.com/research/privileged-bases-in-the-transformer-residual-stream","source_host":"anthropic.com","occurred_at":"2023-03-16T00:00:00.000Z","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"page.visible_date","context":null},"context_markers":[{"label":"Lab","value":"Anthropic","source":"signal"},{"label":"Signal desk","value":"talking","source":"signal"},{"label":"Source host","value":"anthropic.com","source":"source"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"},{"label":"Watch term","value":"Agents and tool 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playbook objective Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has source host","object":"anthropic.com","text":"Privileged Bases In The Transformer Residual Stream has source host anthropic.com."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has lab","object":"Anthropic","text":"Privileged Bases In The Transformer Residual Stream has lab Anthropic."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has signal desk","object":"talking","text":"Privileged Bases In The Transformer Residual Stream has signal desk talking."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has source host","object":"anthropic.com","text":"Privileged Bases In The Transformer Residual Stream has source host anthropic.com."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has watch term","object":"Safety and alignment","text":"Privileged Bases In The Transformer Residual Stream has watch term Safety and alignment."},{"subject":"Privileged Bases In The Transformer Residual Stream","predicate":"has watch term","object":"Agents and tool use","text":"Privileged Bases In The Transformer Residual Stream has watch term Agents and tool use."}]},"intelligence":{"signal_desk":"talking","answer":"Anthropic published Privileged Bases In The Transformer Residual Stream. This talking signal gives public context for research themes, product direction, policy, or launch framing. 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Recent work has shown that this observation is false in practice. We investigate this phenomenon and provisionally conclude that the per-dimension normalizers in the Adam optimizer are to blame for the effect. We explore two other obvious sources of basis dependency in a Transformer: Layer normalization, and finite-precision floating-point calculations. We confidently rule these out as being the source of the observed basis-alignment. Related content Paving the way for agents in biology Read more Making Claude a chemist Read more Coding agents in the social sciences Results from a survey of 1,260 social scientists about AI and coding agent use. Read more"},"evidence_pages":[{"url":"https://www.anthropic.com/research/privileged-bases-in-the-transformer-residual-stream","final_url":"https://www.anthropic.com/research/privileged-bases-in-the-transformer-residual-stream","title":"Privileged Bases In The Transformer Residual Stream","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:18:00.699759+00:00","bytes":105268,"raw_path":"437bd0f997e53e3f8d4912d803764c78ce1ab3e162c0fd9061b9a2e66a7b8479.html","content_hash":"e4399c5897119daae6297ca5400110dacbf5a1d2e2ae0ce8d2f7e861dca9f34a","excerpt_chars":1200,"truncated":false,"excerpt":"Privileged Bases in the Transformer Residual Stream \\ Anthropic Interpretability Research Privileged Bases in the Transformer Residual Stream Mar 16, 2023 Read Paper Abstract Our mathematical theories of the Transformer architecture suggest that individual coordinates in the residual stream should have no special significance (that is, the basis directions should be in some sense \"arbitrary\" and no more likely to encode information than random directions). Recent work has shown that this observation is false in practice. We investigate this phenomenon and provisionally conclude that the per-dimension normalizers in the Adam optimizer are to blame for the effect. We explore two other obvious sources of basis dependency in a Transformer: Layer normalization, and finite-precision floating-point calculations. We confidently rule these out as being the source of the observed basis-alignment. Related content Paving the way for agents in biology Read more Making Claude a chemist Read more Coding agents in the social sciences Results from a survey of 1,260 social scientists about AI and coding agent use. 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