{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Next Generation Constitutional Classifiers","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24","json_url":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24/signal.json","generated_at":"2026-06-09T02:21:00.812425+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/557b5559-6aa3-49d4-9dcb-ef0a333f9d24","signal_json":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24/signal.json","source":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","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 Next Generation Constitutional Classifiers. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks \\ Anthropic Alignment Next-generation Constitutional Classifiers: More.... 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/next-generation-constitutional-classifiers","source_host":"anthropic.com","occurred_at":"2026-01-09T00:00:00.000Z","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":"Eval methodology","source":"evidence"},{"label":"Watch term","value":"Infrastructure","source":"evidence"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"},{"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/next-generation-constitutional-classifiers"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-09T02:21:00.812425+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24/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/557b5559-6aa3-49d4-9dcb-ef0a333f9d24/signal.json","required":true},{"label":"source","url":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","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 \"Next Generation Constitutional Classifiers\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Next Generation Constitutional Classifiers","text":"Anthropic published Next Generation Constitutional Classifiers."},{"subject":"Next Generation Constitutional Classifiers","predicate":"is classified as","object":"writing signal","text":"Next Generation Constitutional Classifiers is classified as writing signal."},{"subject":"Next Generation Constitutional Classifiers","predicate":"belongs to","object":"talking desk","text":"Next Generation Constitutional Classifiers belongs to talking desk."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Next Generation Constitutional Classifiers has evidence coverage 1 captured evidence page."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has captured page count","object":"1","text":"Next Generation Constitutional Classifiers has captured page count 1."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has readable page count","object":"1","text":"Next Generation Constitutional Classifiers has readable page count 1."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has related signal count","object":"6","text":"Next Generation Constitutional Classifiers has related signal count 6."},{"subject":"Next Generation Constitutional Classifiers","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":"Next Generation Constitutional Classifiers 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":"Next Generation Constitutional Classifiers","predicate":"has source host","object":"anthropic.com","text":"Next Generation Constitutional Classifiers has source host anthropic.com."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has lab","object":"Anthropic","text":"Next Generation Constitutional Classifiers has lab Anthropic."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has signal desk","object":"talking","text":"Next Generation Constitutional Classifiers has signal desk talking."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has source host","object":"anthropic.com","text":"Next Generation Constitutional Classifiers has source host anthropic.com."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has watch term","object":"Eval methodology","text":"Next Generation Constitutional Classifiers has watch term Eval methodology."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has watch term","object":"Infrastructure","text":"Next Generation Constitutional Classifiers has watch term Infrastructure."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has watch term","object":"Safety and alignment","text":"Next Generation Constitutional Classifiers has watch term Safety and alignment."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has watch term","object":"Agents and tool use","text":"Next Generation Constitutional Classifiers has watch term Agents and tool use."}]},"intelligence":{"signal_desk":"talking","answer":"Anthropic published Next Generation Constitutional Classifiers. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks \\ Anthropic Alignment Next-generation Constitutional Classifiers: More.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Next Generation Constitutional Classifiers","text":"Anthropic published Next Generation Constitutional Classifiers."},{"subject":"Next Generation Constitutional Classifiers","predicate":"is classified as","object":"writing signal","text":"Next Generation Constitutional Classifiers is classified as writing signal."},{"subject":"Next Generation Constitutional Classifiers","predicate":"belongs to","object":"talking desk","text":"Next Generation Constitutional Classifiers belongs to talking desk."},{"subject":"Next Generation Constitutional Classifiers","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Next Generation Constitutional Classifiers has evidence coverage 1 captured evidence page."}]},"signal":{"id":"557b5559-6aa3-49d4-9dcb-ef0a333f9d24","url":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24","json_url":"https://onlylabs.fyi/signals/557b5559-6aa3-49d4-9dcb-ef0a333f9d24/signal.json","source_url":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","title":"Next Generation Constitutional Classifiers","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":"2026-01-09T00:00:00.000Z","first_seen_at":"2026-06-09T02:17:26.339488+00:00","date_source":"page.visible_date","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/next-generation-constitutional-classifiers"]},"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/next-generation-constitutional-classifiers","final_url":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","title":"Next Generation Constitutional Classifiers","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-09T02:21:00.812425+00:00","bytes":133272,"raw_path":"41ce725530adfaa57d3eb652a1b20b6ab6c757ce10b30f88bb107b6776ddf06c.html","content_hash":"7aec9888674e6d0ed4c3e08f3d94a565a6992b2272b29ceb7365ced0ae5ff066","excerpt_chars":1200,"truncated":true,"excerpt":"Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks \\ Anthropic Alignment Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks Jan 9, 2026 Read the paper Large language models remain vulnerable to jailbreaks—techniques that can circumvent safety guardrails and elicit harmful information. Over time, we’ve implemented a variety of protections that have made our models much less likely to assist with dangerous user queries—in particular relating to the production of chemical, biological, radiological, or nuclear weapons (CBRN). Nevertheless, no AI systems currently on the market have perfectly robust defenses. Last year, we described a new approach to defend against jailbreaks which we called “ Constitutional Classifiers :” safeguards that monitor model inputs and outputs to detect and block potentially harmful content. The novel aspect of the approach was that the classifiers were trained on synthetic data generated from a \"constitution,” which included natural language rules specifying what’s allowed and what isn’t. For example, Claude should help with college chemistry homework, but not..."},"evidence_pages":[{"url":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","final_url":"https://www.anthropic.com/research/next-generation-constitutional-classifiers","title":"Next Generation Constitutional Classifiers","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-09T02:21:00.812425+00:00","bytes":133272,"raw_path":"41ce725530adfaa57d3eb652a1b20b6ab6c757ce10b30f88bb107b6776ddf06c.html","content_hash":"7aec9888674e6d0ed4c3e08f3d94a565a6992b2272b29ceb7365ced0ae5ff066","excerpt_chars":1200,"truncated":true,"excerpt":"Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks \\ Anthropic Alignment Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks Jan 9, 2026 Read the paper Large language models remain vulnerable to jailbreaks—techniques that can circumvent safety guardrails and elicit harmful information. Over time, we’ve implemented a variety of protections that have made our models much less likely to assist with dangerous user queries—in particular relating to the production of chemical, biological, radiological, or nuclear weapons (CBRN). Nevertheless, no AI systems currently on the market have perfectly robust defenses. Last year, we described a new approach to defend against jailbreaks which we called “ Constitutional Classifiers :” safeguards that monitor model inputs and outputs to detect and block potentially harmful content. The novel aspect of the approach was that the classifiers were trained on synthetic data generated from a \"constitution,” which included natural language rules specifying what’s allowed and what isn’t. For example, Claude should help with college chemistry homework, but not..."}],"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"}]}