Organization
Model explorer
OpenAI
42 tracked models · 17 families: GPT-5.6 · GPT-5.5 · GPT-5.4 · GPT-5.2 · GPT-5.1 · GPT-5 · gpt-oss · o3 · o4 · GPT-4.1 · GPT-4.5 · o1 · GPT-4o · GPT-4 · GPT-3.5 · Codex · GPT-3
ReleasedModelParamsCtxElo
Jul 2026GPT-5.6CLOSED—1.05M3073.2Apr 2026GPT-5.5CLOSED—1.05M2680.9Apr 2026GPT-5.5 (High)CLOSED—1.05M2563.6Apr 2026GPT-5.5 (xHigh)CLOSED—1.05M2725.9Mar 2026GPT-5.4 miniCLOSED—400K2098.8Mar 2026GPT-5.4 nanoCLOSED—400K1965.6Mar 2026GPT-5.4CLOSED—1.05M2473.4Mar 2026GPT-5.4 ProCLOSED—1.05M2786.0Dec 2025GPT-5.2CLOSED—400K2495.0Nov 2025GPT-5.1CLOSED—400K2229.4Sep 2025GPT-5-CodexCLOSED—400K2103.4Aug 2025GPT-5CLOSED—400K2082.7Aug 2025GPT-5 miniCLOSED—400K1873.5Aug 2025GPT-5 nanoCLOSED—400K1595.3Aug 2025GPT-5 ProCLOSED—400K2349.9Aug 2025gpt-oss-120b (High)OPEN117B·5.1Ba128K1845.2Aug 2025gpt-oss-120b (Low)OPEN117B·5.1Ba128K1330.6Aug 2025gpt-oss-120b (Medium)OPEN117B·5.1Ba128K1555.0Aug 2025gpt-oss-20b (High)OPEN21B·3.6Ba128K1540.0Aug 2025gpt-oss-20b (Low)OPEN21B·3.6Ba128K1071.0Aug 2025gpt-oss-20b (Medium)OPEN21B·3.6Ba128K1367.6Jun 2025OpenAI o3-proCLOSED—200K2103.6Apr 2025OpenAI o3CLOSED—200K1926.8Apr 2025OpenAI o4-miniCLOSED—200K1875.1Apr 2025GPT-4.1CLOSED—1M1466.6Apr 2025GPT-4.1 miniCLOSED—1M1285.7Apr 2025GPT-4.1 nanoCLOSED—1M887.9Feb 2025GPT-4.5CLOSED—128K1479.2Jan 2025OpenAI o3-mini (High)CLOSED—200K1653.0Jan 2025OpenAI o3-mini (Low)CLOSED—200K1334.3Jan 2025OpenAI o3-mini (Medium)CLOSED—200K1485.5Dec 2024OpenAI o1CLOSED—200K1582.8Dec 2024OpenAI o1-proCLOSED—200K1700.4Sep 2024OpenAI o1-miniCLOSED—128K1261.7Sep 2024OpenAI o1-previewCLOSED—128K1380.6Jul 2024GPT-4o miniCLOSED—128K973.1May 2024GPT-4oCLOSED—128K1249.9Nov 2023GPT-4 TurboCLOSED—128K1142.7Mar 2023GPT-4CLOSED—8K1037.4Mar 2023GPT-3.5 TurboCLOSED—16K502.6Aug 2021OpenAI CodexCLOSED12B4K14.4Jun 2020GPT-3 175BCLOSED175B2K197.2Release cadence
Tracked releases per quarter
1
'20 Q2
1
'21 Q3
2
'23 Q1
1
'23 Q4
1
'24 Q2
3
'24 Q3
2
'24 Q4
4
'25 Q1
6
'25 Q2
11
'25 Q3
2
'25 Q4
4
'26 Q1
3
'26 Q2
1
'26 Q3