{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Circuits Updates April 2024","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872","json_url":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872/signal.json","generated_at":"2026-06-11T04:18:59.053944+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/4ba89fa4-5c60-443d-b957-cb7c910a1872","signal_json":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872/signal.json","source":"https://www.anthropic.com/research/circuits-updates-april-2024","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 Circuits Updates April 2024. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Circuits Updates – April 2024 \\ Anthropic Interpretability Research Circuits Updates – April 2024 Apr 26, 2024 Read Circuits Updates At the link above, we report a.... 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/circuits-updates-april-2024","source_host":"anthropic.com","occurred_at":"2024-04-26T20:32:53+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod","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":"Agents and tool use","source":"evidence"}],"evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://www.anthropic.com/research/circuits-updates-april-2024"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T04:18:59.053944+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872/signal.json","dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","data_radar_json":null,"opportunities_json":null},"analysis_playbook":{"objective":"Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.","evidence_focus":["post title","source URL","captured page text","HN traction","linked model or paper references","publication date"],"extraction_questions":["Which themes are labs choosing to explain publicly?","Which posts are attracting outside discussion?","Which writing reframes a recent release, model, hiring wave, or policy stance?","Which posts mention data, evals, infrastructure, safety, or deployment workflows?"],"signal_questions":["What public theme, launch framing, or research direction does this writing signal expose?","Which themes are labs choosing to explain publicly?","Which posts are attracting outside discussion?","Do the 6 related writing signals show a repeated pattern?"],"output_fields":["org","theme","public_framing","traction","data_business_lane","evidence_url"],"data_business_relevance":"Public writing supplies the narrative layer over raw signals and helps identify which frontier-lab priorities are becoming externally legible.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872/signal.json","required":true},{"label":"source","url":"https://www.anthropic.com/research/circuits-updates-april-2024","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/anthropic/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/anthropic/evidence.json","required":true},{"label":"topic_signals_json","url":"https://onlylabs.fyi/topics/talking/signals.json","required":false},{"label":"data_radar_json","url":null,"required":false}],"expected_output":["one-paragraph source-grounded interpretation","category-specific implication","confidence and missing evidence","recommended next source to inspect"],"prompt_seed":"Using only the linked onlylabs JSON, captured source context, and cited evidence, analyze Anthropic's writing signal \"Circuits Updates April 2024\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Circuits Updates April 2024","text":"Anthropic published Circuits Updates April 2024."},{"subject":"Circuits Updates April 2024","predicate":"is classified as","object":"writing signal","text":"Circuits Updates April 2024 is classified as writing signal."},{"subject":"Circuits Updates April 2024","predicate":"belongs to","object":"talking desk","text":"Circuits Updates April 2024 belongs to talking desk."},{"subject":"Circuits Updates April 2024","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Circuits Updates April 2024 has evidence coverage 1 captured evidence page."},{"subject":"Circuits Updates April 2024","predicate":"has captured page count","object":"1","text":"Circuits Updates April 2024 has captured page count 1."},{"subject":"Circuits Updates April 2024","predicate":"has readable page count","object":"1","text":"Circuits Updates April 2024 has readable page count 1."},{"subject":"Circuits Updates April 2024","predicate":"has related signal count","object":"6","text":"Circuits Updates April 2024 has related signal count 6."},{"subject":"Circuits Updates April 2024","predicate":"has analysis playbook objective","object":"Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.","text":"Circuits Updates April 2024 has analysis playbook objective Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.."},{"subject":"Circuits Updates April 2024","predicate":"has source host","object":"anthropic.com","text":"Circuits Updates April 2024 has source host anthropic.com."},{"subject":"Circuits Updates April 2024","predicate":"has lab","object":"Anthropic","text":"Circuits Updates April 2024 has lab Anthropic."},{"subject":"Circuits Updates April 2024","predicate":"has signal desk","object":"talking","text":"Circuits Updates April 2024 has signal desk talking."},{"subject":"Circuits Updates April 2024","predicate":"has source host","object":"anthropic.com","text":"Circuits Updates April 2024 has source host anthropic.com."},{"subject":"Circuits Updates April 2024","predicate":"has watch term","object":"Agents and tool use","text":"Circuits Updates April 2024 has watch term Agents and tool use."}]},"intelligence":{"signal_desk":"talking","answer":"Anthropic published Circuits Updates April 2024. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Circuits Updates – April 2024 \\ Anthropic Interpretability Research Circuits Updates – April 2024 Apr 26, 2024 Read Circuits Updates At the link above, we report a.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Circuits Updates April 2024","text":"Anthropic published Circuits Updates April 2024."},{"subject":"Circuits Updates April 2024","predicate":"is classified as","object":"writing signal","text":"Circuits Updates April 2024 is classified as writing signal."},{"subject":"Circuits Updates April 2024","predicate":"belongs to","object":"talking desk","text":"Circuits Updates April 2024 belongs to talking desk."},{"subject":"Circuits Updates April 2024","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Circuits Updates April 2024 has evidence coverage 1 captured evidence page."}]},"signal":{"id":"4ba89fa4-5c60-443d-b957-cb7c910a1872","url":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872","json_url":"https://onlylabs.fyi/signals/4ba89fa4-5c60-443d-b957-cb7c910a1872/signal.json","source_url":"https://www.anthropic.com/research/circuits-updates-april-2024","title":"Circuits Updates April 2024","summary":"Anthropic published a writing signal. onlylabs watches public writing for research themes, product direction, and model-launch context.","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2024-04-26T20:32:53+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod","evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://www.anthropic.com/research/circuits-updates-april-2024"]},"facets":{},"traction":{"github_stars":null,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"url":"https://www.anthropic.com/research/circuits-updates-april-2024","final_url":"https://www.anthropic.com/research/circuits-updates-april-2024","title":"Circuits Updates April 2024","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:18:59.053944+00:00","bytes":104616,"raw_path":"17af56100ac622bbe9605cb0956de9e6f7e2efb3d1b8c9e04182db0d9e143382.html","content_hash":"527fca8cf50cd417ef3e716da2dc65e4098fbf35e092578595abc834f63d3ba2","excerpt_chars":1200,"truncated":false,"excerpt":"Circuits Updates – April 2024 \\ Anthropic Interpretability Research Circuits Updates – April 2024 Apr 26, 2024 Read Circuits Updates At the link above, we report a number of developing ideas on the Anthropic Interpretability team, which might be of interest to researchers working actively in this space. Some of these are emerging strands of research where we expect to publish more on in the coming months. Others are minor points we wish to share, since we're unlikely to ever write a paper about them. We'd ask you to treat these results like those of a colleague sharing some thoughts or preliminary experiments for a few minutes at a lab meeting, rather than a mature paper. 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/circuits-updates-april-2024","final_url":"https://www.anthropic.com/research/circuits-updates-april-2024","title":"Circuits Updates April 2024","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:18:59.053944+00:00","bytes":104616,"raw_path":"17af56100ac622bbe9605cb0956de9e6f7e2efb3d1b8c9e04182db0d9e143382.html","content_hash":"527fca8cf50cd417ef3e716da2dc65e4098fbf35e092578595abc834f63d3ba2","excerpt_chars":1200,"truncated":false,"excerpt":"Circuits Updates – April 2024 \\ Anthropic Interpretability Research Circuits Updates – April 2024 Apr 26, 2024 Read Circuits Updates At the link above, we report a number of developing ideas on the Anthropic Interpretability team, which might be of interest to researchers working actively in this space. Some of these are emerging strands of research where we expect to publish more on in the coming months. Others are minor points we wish to share, since we're unlikely to ever write a paper about them. We'd ask you to treat these results like those of a colleague sharing some thoughts or preliminary experiments for a few minutes at a lab meeting, rather than a mature paper. 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"}],"related_signals":[{"id":"6c78c028-3ab4-4b33-86f7-d86c8ba9e3ba","url":"https://onlylabs.fyi/signals/6c78c028-3ab4-4b33-86f7-d86c8ba9e3ba","source_url":"https://www.anthropic.com/research/agents-in-biology","title":"Agents In Biology","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-10T15:16:01+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod"},{"id":"2648db51-9d6a-42a9-aece-a0ca5f9ce64f","url":"https://onlylabs.fyi/signals/2648db51-9d6a-42a9-aece-a0ca5f9ce64f","source_url":"https://www.anthropic.com/news/claude-fable-5-mythos-5","title":"Claude Fable 5 Mythos 5","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-09T20:27:50+00:00","first_seen_at":"2026-06-10T07:01:05.666054+00:00","date_source":"sitemap.lastmod"},{"id":"8475487f-45b4-4689-9bc5-8e4c6ca0457d","url":"https://onlylabs.fyi/signals/8475487f-45b4-4689-9bc5-8e4c6ca0457d","source_url":"https://www.anthropic.com/engineering/how-we-contain-claude","title":"How We Contain Claude","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-06T00:28:16+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod"},{"id":"e4fbfcdd-15b4-41b9-b011-fd83e7068ae9","url":"https://onlylabs.fyi/signals/e4fbfcdd-15b4-41b9-b011-fd83e7068ae9","source_url":"https://www.anthropic.com/research/making-claude-a-chemist","title":"Making Claude A Chemist","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-05T20:13:40+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod"},{"id":"cc62deba-9682-4751-aa6b-81c3bd7122a0","url":"https://onlylabs.fyi/signals/cc62deba-9682-4751-aa6b-81c3bd7122a0","source_url":"https://www.anthropic.com/research/measuring-agent-autonomy","title":"Measuring Agent Autonomy","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-05T15:49:18+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod"},{"id":"93da14fd-7141-4e17-abd6-1c8d52435c70","url":"https://onlylabs.fyi/signals/93da14fd-7141-4e17-abd6-1c8d52435c70","source_url":"https://www.anthropic.com/research/values-wild","title":"Values Wild","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-05T15:38:54+00:00","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"sitemap.lastmod"}]}