o3-pro

Deprecated · Language, Multimodal, Reasoning · Primary source available

Lifecycle
Milestone or variant
Related model
Source event
AI Radar coverage
Only month or year known
7 events

2025

2026

As of 10 October 2026

Announced +2Lifecycle · 16 Apr 2025

ReleasedLifecycle · 10 Jun 2025

DeprecatedLifecycle · 11 Jun 2026

Successor GPT-5Lineage · 7 Aug 2025

Announcement archivedSource · 16 Sep 2026

All events, in order

16 April 2025 Lifecycle Announced
16 April 2025 Lineage Based on o3
16 April 2025 Source Announcement published
10 June 2025 Lifecycle Released
7 August 2025 Lineage Successor GPT-5
11 June 2026 Lifecycle Deprecated
16 September 2026 Source Announcement archived

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