{"id":"gpt-5-5-pre-release","slug":"gpt-5-5-pre-release","name":"GPT-5.5 Pre Release","orgId":"openai","family":"gpt-5-5-pre-release","releaseDate":"2026-04-23","availability":"ga","openWeights":false,"license":null,"paramsTotal":null,"contextWindow":null,"knowledgeCutoff":null,"modelCardUrl":"https://epoch.ai/benchmarks","hfRepo":null,"modalities":["text"],"aliases":["gpt-5.5-pre-release_xhigh","GPT-5.5 Pre Release"],"aliasNote":null,"organization":{"id":"openai","name":"OpenAI","slug":"openai","country":null,"url":null,"color":"#10A37F","mark":"O"},"price":null,"answer":{"word":"No.","scope":"Best recorded rank is #2 in Coding.","lead":"As of Oct 14, 2026, GPT-5.5 Pre Release from OpenAI. Best recorded rank is #2 in Coding. Last listed at #2 in Coding on 2026-04-23.","confidence":"low"},"verdicts":[{"id":"v_overall_reasoning_gpt-5-5-pre-release_2026-10-14_open_NOT_SOTA","model":"gpt-5-5-pre-release","model_name":"GPT-5.5 Pre Release","category":"reasoning","category_name":"Reasoning","slice":"overall","state":"NOT_SOTA","rank":11,"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":"xhigh","rationale":"Last listed at #11 in Reasoning on 2026-04-23.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #11"},{"id":"v_overall_science_gpt-5-5-pre-release_2026-10-14_open_NOT_SOTA","model":"gpt-5-5-pre-release","model_name":"GPT-5.5 Pre Release","category":"science","category_name":"Science","slice":"overall","state":"NOT_SOTA","rank":11,"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":"xhigh","rationale":"Last listed at #11 in Science on 2026-04-23. That board does not award a crown.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #11"},{"id":"v_overall_coding_gpt-5-5-pre-release_2026-10-14_open_NOT_SOTA","model":"gpt-5-5-pre-release","model_name":"GPT-5.5 Pre Release","category":"coding","category_name":"Coding","slice":"overall","state":"NOT_SOTA","rank":2,"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":"xhigh","rationale":"Last listed at #2 in Coding on 2026-04-23.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #2"}]}