{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Claude Opus 5","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2","json_url":"https://onlylabs.fyi/signals/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2/signal.json","generated_at":"2026-07-26T18:50:00.097Z","evidence_latest_fetched_at":"2026-07-24T20:02:49.400649+00:00","signal_first_seen_at":"2026-07-24T20:01:42.259449+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/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2","signal_json":"https://onlylabs.fyi/signals/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2/signal.json","source":"https://www.anthropic.com/news/claude-opus-5","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 Claude Opus 5. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Introducing Claude Opus 5 \\ Anthropic Product Announcements Introducing Claude Opus 5 Jul 24, 2026 Claude Opus 5 is available today. It’s a thoughtful and proactive.... 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/news/claude-opus-5","source_host":"anthropic.com","occurred_at":"2026-07-24T00:00:00.000Z","first_seen_at":"2026-07-24T20:01:42.259449+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":"Safety and alignment","source":"evidence"},{"label":"Watch term","value":"Agents and tool 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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/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2/signal.json","required":true},{"label":"source","url":"https://www.anthropic.com/news/claude-opus-5","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 \"Claude Opus 5\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Claude Opus 5","text":"Anthropic published Claude Opus 5."},{"subject":"Claude Opus 5","predicate":"is classified as","object":"writing signal","text":"Claude Opus 5 is classified as writing signal."},{"subject":"Claude Opus 5","predicate":"belongs to","object":"talking desk","text":"Claude Opus 5 belongs to talking desk."},{"subject":"Claude Opus 5","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Claude Opus 5 has evidence coverage 1 captured evidence page."},{"subject":"Claude Opus 5","predicate":"has captured page count","object":"1","text":"Claude Opus 5 has captured page count 1."},{"subject":"Claude Opus 5","predicate":"has readable page count","object":"1","text":"Claude Opus 5 has readable page count 1."},{"subject":"Claude Opus 5","predicate":"has related signal count","object":"6","text":"Claude 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Introducing Claude Opus 5 \\ Anthropic Product Announcements Introducing Claude Opus 5 Jul 24, 2026 Claude Opus 5 is available today. It’s a thoughtful and proactive.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Claude Opus 5","text":"Anthropic published Claude Opus 5."},{"subject":"Claude Opus 5","predicate":"is classified as","object":"writing signal","text":"Claude Opus 5 is classified as writing signal."},{"subject":"Claude Opus 5","predicate":"belongs to","object":"talking desk","text":"Claude Opus 5 belongs to talking desk."},{"subject":"Claude Opus 5","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Claude Opus 5 has evidence coverage 1 captured evidence page."}]},"signal":{"id":"03a6b625-8bfd-4013-aeb9-01cd9d54c1a2","url":"https://onlylabs.fyi/signals/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2","json_url":"https://onlylabs.fyi/signals/03a6b625-8bfd-4013-aeb9-01cd9d54c1a2/signal.json","source_url":"https://www.anthropic.com/news/claude-opus-5","title":"Claude Opus 5","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":"2026-07-24T00:00:00.000Z","first_seen_at":"2026-07-24T20:01:42.259449+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/news/claude-opus-5"]},"facets":{},"traction":{"github_stars":null,"hn_points":845,"hn_comments":473,"hn_story_id":"49038433","hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"is_primary":true,"source_match":true,"url":"https://www.anthropic.com/news/claude-opus-5","final_url":"https://www.anthropic.com/news/claude-opus-5","title":"Claude Opus 5","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-07-24T20:02:49.400649+00:00","bytes":316698,"raw_path":"c34a327604b5be4a7c98002df4365d3ba7ea31a8a315f02f0082d8694e23de2f.html","content_hash":"1a1684c0a7d628642bf20e2a1c3d20c9839f759e4962755eace708efc8c2bb91","excerpt_chars":1200,"truncated":true,"excerpt":"Introducing Claude Opus 5 \\ Anthropic Product Announcements Introducing Claude Opus 5 Jul 24, 2026 Claude Opus 5 is available today. It’s a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price. On coding and knowledge work evaluations like Frontier-Bench and GDPval-AA , Opus 5 is the new state-of-the-art, though it remains behind Mythos 5 on cybersecurity tasks. Opus 5 is designed to be used every day: it works more efficiently than other models. It’s the new default model on Claude Max, and the strongest model on Claude Pro. Performance and cost-effectiveness Claude Opus 5 provides greatly improved performance for the same cost as its predecessor, Opus 4.8. The charts in this section show how performance changes according to the model’s effort setting, which customers can use to optimize for intelligence or conserve tokens for faster and cheaper results. Opus 5 excels on valuable software engineering tasks. For example, on Frontier-Bench v0.1, Opus 5 surpasses all other models, and more than doubles Opus 4.8’s performance at a lower cost per task. 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