| Property | Type | Description |
|---|---|---|
| effort | String |
Constrains effort on reasoning for reasoning models. Currently supported values are minimal, low, medium, and high. Reducing reasoning effort can result in faster responses and fewer tokens used on reasoning in a response. Note: The gpt-5-pro model defaults to (and only supports) high reasoning effort. |
| summary | String |
A summary of the reasoning performed by the model. This can be useful for debugging and understanding the model's reasoning process. One of auto, concise, or detailed. |