Is o3 being deprecated?
The official status is deprecated. o3 shuts down on 2026-12-11 per OpenAI's deprecation page (checked 2026-10-26). The official replacement is gpt-5.6-sol.
Is o3 being deprecated?
The official status is deprecated. o3 shuts down on 2026-12-11 per OpenAI's deprecation page (checked 2026-10-26). The official replacement is gpt-5.6-sol.
Model page · o3 shutdown date · OpenAI · Deadlines
Questions
When is o3 shut down?
o3 shuts down on 2026-12-11 per OpenAI's deprecation page (checked 2026-10-26).
What replaces o3?
The official replacement is gpt-5.6-sol.
Sources
- OpenAI deprecations — checked 2026-10-26
- OpenAI model docs — checked 2026-10-26