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o3 Family - Related AI Models | Phaseo

All model families

o3

Models: 5
Release span: Dec 2024Jun 2025

Family members

Newest to oldest

01
o3 Deep Research
OpenAI
Jun 26, 2025
retired
02
o3 Pro
OpenAI
Jun 10, 2025
active
03
o3
OpenAI
Apr 16, 2025
active
04
o3 mini
OpenAI
Jan 30, 2025
deprecated
05
o3 Preview
OpenAI
Dec 20, 2024
draft