{"schema_version":"onlylabs.public_signal.v1","title":"OpenAI Writing: OpenAI GPT-4.5 System Card","description":"OpenAI writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/c87d1451-a38d-4771-8aec-99d491d4ecd3","json_url":"https://onlylabs.fyi/signals/c87d1451-a38d-4771-8aec-99d491d4ecd3/signal.json","generated_at":"2026-06-08T15:45:49.435+00:00","org":{"slug":"openai","name":"OpenAI","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/openai","dossier_json_url":"https://onlylabs.fyi/labs/openai/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/c87d1451-a38d-4771-8aec-99d491d4ecd3","signal_json":"https://onlylabs.fyi/signals/c87d1451-a38d-4771-8aec-99d491d4ecd3/signal.json","source":"https://openai.com/index/gpt-4-5-system-card","lab_dossier":"https://onlylabs.fyi/labs/openai","lab_dossier_json":"https://onlylabs.fyi/labs/openai/dossier.json","analysis":"https://onlylabs.fyi/analysis/openai","analysis_json":"https://onlylabs.fyi/analysis/openai/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/openai/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":"OpenAI published OpenAI GPT-4.5 System Card. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Flagship frontier model launch · February 27, 2025 OpenAI GPT‑4.5 System Card Read the System Card Contributions Share GPT-4.5 system card Specific areas of risk Disallowed content Jailbreaks Model.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","signal_desk":"talking","source_context":{"source_url":"https://openai.com/index/gpt-4-5-system-card","source_host":"openai.com","occurred_at":"2025-02-27T12:00:00+00:00","first_seen_at":"2026-06-05T05:42:57.832854+00:00","date_source":"rss.item_date","context":null},"context_markers":[{"label":"Lab","value":"OpenAI","source":"signal"},{"label":"Signal desk","value":"talking","source":"signal"},{"label":"Source host","value":"openai.com","source":"source"},{"label":"Notability","value":"Flagship frontier model launch","source":"signal"},{"label":"Watch term","value":"RL environments","source":"evidence"},{"label":"Watch term","value":"Eval 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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/c87d1451-a38d-4771-8aec-99d491d4ecd3/signal.json","required":true},{"label":"source","url":"https://openai.com/index/gpt-4-5-system-card","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/openai/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/openai/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 OpenAI's 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Infrastructure."},{"subject":"OpenAI GPT-4.5 System Card","predicate":"has watch term","object":"Safety and alignment","text":"OpenAI GPT-4.5 System Card has watch term Safety and alignment."}]},"intelligence":{"signal_desk":"talking","answer":"OpenAI published OpenAI GPT-4.5 System Card. This talking signal gives public context for research themes, product direction, policy, or launch framing. 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Introduction We’re releasing a research preview of OpenAI GPT‑4.5, our largest and most knowledgeable model yet. Building on GPT‑4o, GPT‑4.5 scales pre-training further and is designed to be more general-purpose than our powerful STEM-focused reasoning models. We trained it using new supervision techniques combined with traditional methods like supervised fine-tuning (SFT) and reinforcement learning from human feedback (RLHF), similar to those used for GPT‑4o. We conducted extensive safety evaluations prior to deployment and did not find any significant increase in safety risk compared to existing models. Early testing shows that interacting with GPT‑4.5 feels more natural. Its broader knowledge base, stronger..."},"evidence_pages":[{"url":"https://openai.com/index/gpt-4-5-system-card","final_url":"https://openai.com/index/gpt-4-5-system-card","title":"OpenAI GPT-4.5 System Card","http_status":200,"content_type":null,"capture_method":"exa","fetched_at":"2026-06-08T15:45:49.435+00:00","bytes":null,"raw_path":null,"content_hash":null,"excerpt_chars":1200,"truncated":true,"excerpt":"February 27, 2025 OpenAI GPT‑4.5 System Card Read the System Card Contributions Share GPT-4.5 system card Specific areas of risk Disallowed content Jailbreaks Model mistakes Preparedness scorecard CBRN Medium Cybersecurity Low Persuasion Medium Model autonomy Low Scorecard ratings - Low - Medium - High - Critical Only models with a post-mitigation score of \"medium\" or below can be deployed.Only models with a post-mitigation score of \"high\" or below can be developed further. Introduction We’re releasing a research preview of OpenAI GPT‑4.5, our largest and most knowledgeable model yet. Building on GPT‑4o, GPT‑4.5 scales pre-training further and is designed to be more general-purpose than our powerful STEM-focused reasoning models. We trained it using new supervision techniques combined with traditional methods like supervised fine-tuning (SFT) and reinforcement learning from human feedback (RLHF), similar to those used for GPT‑4o. We conducted extensive safety evaluations prior to deployment and did not find any significant increase in safety risk compared to existing models. Early testing shows that interacting with GPT‑4.5 feels more natural. 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