{"schema_version":"onlylabs.public_signal.v1","title":"OpenAI Writing: Learning a hierarchy","description":"OpenAI writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/7b8642c8-b6ea-4755-ad33-6281652f0449","json_url":"https://onlylabs.fyi/signals/7b8642c8-b6ea-4755-ad33-6281652f0449/signal.json","generated_at":"2026-06-08T15:47:07.32+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/7b8642c8-b6ea-4755-ad33-6281652f0449","signal_json":"https://onlylabs.fyi/signals/7b8642c8-b6ea-4755-ad33-6281652f0449/signal.json","source":"https://openai.com/index/learning-a-hierarchy","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 Learning a hierarchy. 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