{"schema_version":"onlylabs.public_signal.v1","title":"OpenAI Writing: GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum","description":"OpenAI writing signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/99ba28e7-2786-4b37-9d8e-3c1a7e47c871","json_url":"https://onlylabs.fyi/signals/99ba28e7-2786-4b37-9d8e-3c1a7e47c871/signal.json","generated_at":"2026-06-08T15:45:30.566+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/99ba28e7-2786-4b37-9d8e-3c1a7e47c871","signal_json":"https://onlylabs.fyi/signals/99ba28e7-2786-4b37-9d8e-3c1a7e47c871/signal.json","source":"https://openai.com/index/gpt-5-system-card-addendum-gpt-5-1","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":{"radar":"https://onlylabs.fyi/data-radar","radar_json":"https://onlylabs.fyi/data-radar.json","opportunities":"https://onlylabs.fyi/opportunities","opportunities_json":"https://onlylabs.fyi/opportunities.json","lanes":[{"key":"evals","label":"Evals and quality","url":"https://onlylabs.fyi/data-radar/evals","json_url":"https://onlylabs.fyi/data-radar/evals/signals.json"},{"key":"safety","label":"Safety and policy","url":"https://onlylabs.fyi/data-radar/safety","json_url":"https://onlylabs.fyi/data-radar/safety/signals.json"}]}},"answer_pack":{"answer":"OpenAI published GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Notable model update, low traction · GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum | OpenAI November 12, 2025 GPT‑5.1 Instant and GPT‑5.1 Thinking System Card Addendum Read the System Card Share.... onlylabs links this event to 1 captured evidence page and 6 related writing signals. 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This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Notable model update, low traction · GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum | OpenAI November 12, 2025 GPT‑5.1 Instant and GPT‑5.1 Thinking System Card Addendum Read the System Card Share.... onlylabs links this event to 1 captured evidence page and 6 related writing signals. 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GPT‑5.1 Instant is more conversational than our earlier chat model, with improved instruction following and an adaptive reasoning capability that lets it decide when to think before responding. GPT‑5.1 Thinking adapts thinking time more precisely to each question. GPT‑5.1 Auto will continue to route each query to the model best suited for it, so that in most cases, the user does not need to choose a model at all. The comprehensive safety mitigations for these models are largely the same as we described in the GPT‑5 System Card⁠. This system card addendum provides updated baseline safety metrics for these new model versions. As we noted in our recent GPT‑5 system card addendum on sensitive conversations⁠, we have expanded the baseline safety evaluations that we conduct as part of pre-deployment safety review to include evaluations for mental health (covering situations where there are signs that..."},"evidence_pages":[{"url":"https://openai.com/index/gpt-5-system-card-addendum-gpt-5-1","final_url":"https://openai.com/index/gpt-5-system-card-addendum-gpt-5-1","title":"GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum","http_status":200,"content_type":null,"capture_method":"exa","fetched_at":"2026-06-08T15:45:30.566+00:00","bytes":null,"raw_path":null,"content_hash":null,"excerpt_chars":1200,"truncated":true,"excerpt":"GPT-5.1 Instant and GPT-5.1 Thinking System Card Addendum | OpenAI November 12, 2025 GPT‑5.1 Instant and GPT‑5.1 Thinking System Card Addendum Read the System Card Share Introduction As described in our blog⁠, GPT‑5.1 Instant and GPT‑5.1 Thinking are the next iteration of our GPT‑5 models. 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