{"entity":"gpt-4-1","id":"ent_gpt-4-1","name":"GPT-4.1","predicate":"model_release","label":"release date","page":"https://asof.is/record/gpt-4-1/model_release","as_of":"2026-11-04","summary":"As of November 4, 2026, the AsOf record says GPT-4.1 was released on April 14, 2025 (as gpt-4.1), from a primary source (developers.openai.com). The record holds 1 claim on GPT-4.1's release, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_0F5975E568EB"],"latest_period":null,"claims":[{"id":"clm_0F5975E568EB","value":"gpt-4.1","valid_from":"2025-04-14","valid_to":null,"published":"2025-04-14","recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://developers.openai.com/api/docs/changelog#2025-04-14","tier":"primary","publisher":"OpenAI","published_at":"2025-04-14T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"Apr 14 Feature gpt-4.1 gpt-4.1-mini gpt-4.1-nano v1/responses v1/chat/completions v1/fine_tuning Added gpt-4.1 , gpt-4.1-mini , and gpt-4.1-nano models to the API.","url":"https://developers.openai.com/api/docs/changelog#2025-04-14"}}],"replaced":[],"faq":[{"question":"When was GPT-4.1 released?","answer":"On April 14, 2025 (as gpt-4.1), from a primary source (developers.openai.com) (status valid, confidence 0.95)."}],"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}