
Compare several models on the same question
Most of the time, Auto's pick is the answer. But for judgment calls and high-stakes work, it's worth putting the same question to a few models. Here's when that pays off and how to do it.

Most of the time, Auto's pick is the answer. But for judgment calls and high-stakes work, it's worth putting the same question to a few models. Here's when that pays off and how to do it.

Deep Think makes the model work a hard problem through several passes before it answers. Here's when that pays off, when it's overkill, and how to switch it on.

Stay on Auto most of the time, pin a specific model when you want one, then switch back — your chat history and attached files come with you.

Auto already picks a good model on its own. One small preference tells it how to lean when the call is close — toward saving credits, staying balanced, or the best model your plan includes.

Auto chooses the AI model for you on every message. Here's how it decides which one to use.