Confirmed model releases

OpenAI model releases

A newest-first record of confirmed OpenAI launches, linked to the source used for the date and the corresponding BenchLM model record when available.

22 confirmed releases1 providersData through Jul 9, 2026How releases are confirmed

OpenAI release archive

22 confirmed releases · latest Jul 9, 2026

Provider dossier

Confirmed releases

Release	Provider	Confirmed	Evidence	BenchLM
July 2026· 1 release
GPT-5.63 model variants	OA OpenAI	Jul 9, 2026Exact day	OpenAI GPT-5.6	Benchmarks
April 2026· 1 release
GPT-5.5 and GPT-5.5 Pro2 model variants	OA OpenAI	Apr 23, 2026Exact day	OpenAI	Benchmarks
March 2026· 3 releases
GPT-5.4 mini and nano2 model variants	OA OpenAI	Mar 17, 2026Exact day	OpenAI	Benchmarks
GPT-5.4 and GPT-5.4 Pro2 model variants	OA OpenAI	Mar 5, 2026Exact day	OpenAI	Benchmarks
GPT-5.3 Instant	OA OpenAI	Mar 3, 2026Exact day	OpenAI	Benchmarks
February 2026· 2 releases
GPT-5.3-Codex-Spark	OA OpenAI	Feb 12, 2026Exact day	OpenAI	Benchmarks
GPT-5.3-Codex	OA OpenAI	Feb 5, 2026Exact day	OpenAI	Benchmarks
December 2025· 2 releases
GPT-5.2-Codex	OA OpenAI	Dec 18, 2025Exact day	OpenAI	Benchmarks
GPT-5.2 family3 model variants	OA OpenAI	Dec 11, 2025Exact day	OpenAI	Benchmarks
November 2025· 2 releases
GPT-5.1-Codex-Max	OA OpenAI	Nov 19, 2025Exact day	OpenAI	Benchmarks
GPT-5.1	OA OpenAI	Nov 13, 2025Exact day	OpenAI	Benchmarks
August 2025· 2 releases
GPT-5 family	OA OpenAI	Aug 7, 2025Exact day	OpenAI
gpt-oss family	OA OpenAI	Aug 5, 2025Exact day	OpenAI
April 2025· 3 releases
o3	OA OpenAI	Apr 16, 2025Exact day	OpenAI	Benchmarks
o4-mini	OA OpenAI	Apr 16, 2025Exact day	OpenAI
GPT-4.1 family3 model variants	OA OpenAI	Apr 14, 2025Exact day	OpenAI	Benchmarks
January 2025· 1 release
o3-mini	OA OpenAI	Jan 31, 2025Exact day	OpenAI	Benchmarks
December 2024· 1 release
o1 family	OA OpenAI	December 2024Month precision	OpenAI	Benchmarks
September 2024· 1 release
o1-preview	OA OpenAI	Sep 12, 2024Exact day	OpenAI	Benchmarks
July 2024· 1 release
GPT-4o mini	OA OpenAI	Jul 18, 2024Exact day	OpenAI	Benchmarks
May 2024· 1 release
GPT-4o	OA OpenAI	May 13, 2024Exact day	OpenAI	Benchmarks
November 2023· 1 release
GPT-4 Turbo	OA OpenAI	Nov 6, 2023Exact day	OpenAI	Benchmarks

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