Adding the GPT-5.2 model to custom modes

The day before yesterday a new model, GPT-5.2, was released. I’d really like to see this model in the list of options for custom mods.

But if you do add it, please make sure to add the non-reasoning version, because it takes a very long time to think, and overall the cost of the reasoning model for you will be about 5–7 times higher than the non-reasoning one. That’s just not economically reasonable, and for the user, such long reasoning isn’t really desirable either.