{"entity":"gpt-5-3-codex","id":"ent_gpt-5-3-codex","name":"GPT-5.3-Codex","predicate":"deprecated","label":"deprecation","page":"https://asof.is/record/gpt-5-3-codex/deprecated","as_of":"2026-11-04","summary":"As of November 4, 2026, the AsOf record says GPT-5.3-Codex was deprecated on October 1, 2026 (as gpt-5.3-codex), from a primary source (platform.openai.com). The record holds 1 claim on GPT-5.3-Codex's deprecation, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_3C9D776B3539"],"latest_period":null,"claims":[{"id":"clm_3C9D776B3539","value":"gpt-5.3-codex","valid_from":"2026-10-01","valid_to":null,"published":null,"recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://platform.openai.com/docs/deprecations","tier":"primary","publisher":"OpenAI (API deprecations)","published_at":null}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"2026-10-01: GPT-5.3-Codex, GPT-5.1, GPT-5.4-Nano The following models are deprecated and will be removed from the API on April 1, 2027, with six months’ notice. Migrate to the recommended replacements before the shutdown date. Shutdown date Model / system Recommended replacement Apr 1, 2027 gpt-5.3-codex gpt-6-sol","url":"https://platform.openai.com/docs/deprecations"}}],"replaced":[],"faq":[{"question":"When was GPT-5.3-Codex deprecated?","answer":"On October 1, 2026 (as gpt-5.3-codex), from a primary source (platform.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"}}}