SunsetDiff

o4-mini shutdown date

| (o4-mini) shuts down on 2026-10-23 per OpenAI's deprecation page (checked 2026-10-17). The official replacement is gpt-5.6-terra. On the labeled example of 10 million input tokens and 2 million output tokens, gpt-5.6-terra costs $44 a month, higher than $19.8 for o4-mini.

Model page · Is o4-mini being deprecated? · OpenAI · Deadlines

Questions

What is the o4-mini shutdown date?

| (o4-mini) shuts down on 2026-10-23 per OpenAI's deprecation page (checked 2026-10-17). The official replacement is gpt-5.6-terra. On the labeled example of 10 million input tokens and 2 million output tokens, gpt-5.6-terra costs $44 a month, higher than $19.8 for o4-mini.

Is o4-mini being deprecated?

The official status is deprecated. | (o4-mini) shuts down on 2026-10-23 per OpenAI's deprecation page (checked 2026-10-17). The official replacement is gpt-5.6-terra.

What replaces o4-mini?

The official replacement is gpt-5.6-terra.

Sources