{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Writing: Claude Haiku 4 5","description":"Anthropic writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/e1d71f8b-d423-4787-b8a3-756624e52940","json_url":"https://onlylabs.fyi/signals/e1d71f8b-d423-4787-b8a3-756624e52940/signal.json","generated_at":"2026-06-11T04:15:22.818062+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/e1d71f8b-d423-4787-b8a3-756624e52940","signal_json":"https://onlylabs.fyi/signals/e1d71f8b-d423-4787-b8a3-756624e52940/signal.json","source":"https://www.anthropic.com/news/claude-haiku-4-5","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 Haiku 4 5. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Introducing Claude Haiku 4.5 \\ Anthropic Product Introducing Claude Haiku 4.5 Oct 15, 2025 Claude Haiku 4.5, our latest small model, is available today to all users..... 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-haiku-4-5","source_host":"anthropic.com","occurred_at":"2025-10-15T00:00:00.000Z","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":"Data pipeline","source":"evidence"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"},{"label":"Watch 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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/e1d71f8b-d423-4787-b8a3-756624e52940/signal.json","required":true},{"label":"source","url":"https://www.anthropic.com/news/claude-haiku-4-5","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 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Introducing Claude Haiku 4.5 \\ Anthropic Product Introducing Claude Haiku 4.5 Oct 15, 2025 Claude Haiku 4.5, our latest small model, is available today to all users..... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"Anthropic","predicate":"published","object":"Claude Haiku 4 5","text":"Anthropic published Claude Haiku 4 5."},{"subject":"Claude Haiku 4 5","predicate":"is classified as","object":"writing signal","text":"Claude Haiku 4 5 is classified as writing signal."},{"subject":"Claude Haiku 4 5","predicate":"belongs to","object":"talking desk","text":"Claude Haiku 4 5 belongs to talking desk."},{"subject":"Claude Haiku 4 5","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Claude Haiku 4 5 has evidence coverage 1 captured evidence page."}]},"signal":{"id":"e1d71f8b-d423-4787-b8a3-756624e52940","url":"https://onlylabs.fyi/signals/e1d71f8b-d423-4787-b8a3-756624e52940","json_url":"https://onlylabs.fyi/signals/e1d71f8b-d423-4787-b8a3-756624e52940/signal.json","source_url":"https://www.anthropic.com/news/claude-haiku-4-5","title":"Claude Haiku 4 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":"2025-10-15T00:00:00.000Z","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/news/claude-haiku-4-5"]},"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/news/claude-haiku-4-5","final_url":"https://www.anthropic.com/news/claude-haiku-4-5","title":"Claude Haiku 4 5","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:15:22.818062+00:00","bytes":185617,"raw_path":"e99bd76836c10fea04c16c307618ffed3e38c573391fc5a2f3ca53ebc900cbe2.html","content_hash":"bcd6ea359b9ca8f19a0e22e58ef37e1dca60b7900ea515719bd7726368b22b58","excerpt_chars":1200,"truncated":true,"excerpt":"Introducing Claude Haiku 4.5 \\ Anthropic Product Introducing Claude Haiku 4.5 Oct 15, 2025 Claude Haiku 4.5, our latest small model, is available today to all users. What was recently at the frontier is now cheaper and faster. Five months ago, Claude Sonnet 4 was a state-of-the-art model. Today, Claude Haiku 4.5 gives you similar levels of coding performance but at one-third the cost and more than twice the speed. Claude Haiku 4.5 even surpasses Claude Sonnet 4 at certain tasks, like using computers. These advances make applications like Claude for Chrome faster and more useful than ever before. Users who rely on AI for real-time, low-latency tasks like chat assistants, customer service agents, or pair programming will appreciate Haiku 4.5’s combination of high intelligence and remarkable speed. And users of Claude Code will find that Haiku 4.5 makes the coding experience—from multiple-agent projects to rapid prototyping—markedly more responsive. Claude Sonnet 4.5, released two weeks ago , remains our frontier model and the best coding model in the world. Claude Haiku 4.5 gives users a new option for when they want near-frontier performance with much greater cost-efficiency. It..."},"evidence_pages":[{"url":"https://www.anthropic.com/news/claude-haiku-4-5","final_url":"https://www.anthropic.com/news/claude-haiku-4-5","title":"Claude Haiku 4 5","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T04:15:22.818062+00:00","bytes":185617,"raw_path":"e99bd76836c10fea04c16c307618ffed3e38c573391fc5a2f3ca53ebc900cbe2.html","content_hash":"bcd6ea359b9ca8f19a0e22e58ef37e1dca60b7900ea515719bd7726368b22b58","excerpt_chars":1200,"truncated":true,"excerpt":"Introducing Claude Haiku 4.5 \\ Anthropic Product Introducing Claude Haiku 4.5 Oct 15, 2025 Claude Haiku 4.5, our latest small model, is available today to all users. What was recently at the frontier is now cheaper and faster. Five months ago, Claude Sonnet 4 was a state-of-the-art model. Today, Claude Haiku 4.5 gives you similar levels of coding performance but at one-third the cost and more than twice the speed. Claude Haiku 4.5 even surpasses Claude Sonnet 4 at certain tasks, like using computers. These advances make applications like Claude for Chrome faster and more useful than ever before. Users who rely on AI for real-time, low-latency tasks like chat assistants, customer service agents, or pair programming will appreciate Haiku 4.5’s combination of high intelligence and remarkable speed. And users of Claude Code will find that Haiku 4.5 makes the coding experience—from multiple-agent projects to rapid prototyping—markedly more responsive. Claude Sonnet 4.5, released two weeks ago , remains our frontier model and the best coding model in the world. Claude Haiku 4.5 gives users a new option for when they want near-frontier performance with much greater cost-efficiency. 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