OPENAI · MODEL
o3-pro-2025-06-10 shuts down on 11 December 2026
SHUTS DOWN11 December 2026
TIME LEFT55 days
REPLACE WITHgpt-5.6-sol ( reasoning.mode: pro )
Announced in: 2026-06-11: GPT-5 and o3 model deprecations.
OpenAI lists 11 December 2026 as the shutdown date for o3-pro-2025-06-10, with gpt-5.6-sol ( reasoning.mode: pro ) as the recommended replacement. Source: OpenAI's official deprecations page, checked 17 October 2026. Read the official page.
Checked against the official page on 17 October 2026 at 06:08 UTC
Announced in the same notice
| Shuts down | When | Model | Replace with | Source |
|---|---|---|---|---|
| 11 December 2026 | 55 days | gpt-5-2025-08-07 | gpt-5.6-sol | Official |
| 11 December 2026 | 55 days | gpt-5-mini-2025-08-07 | gpt-5.6-terra | Official |
| 11 December 2026 | 55 days | gpt-5-nano-2025-08-07 | gpt-5.6-luna | Official |
| 11 December 2026 | 55 days | gpt-5-pro-2025-10-06 | gpt-5.6-sol ( reasoning.mode: pro ) | Official |
| 11 December 2026 | 55 days | o3-2025-04-16 | gpt-5.6-sol | Official |