Switch models while the agent works, and open what it saved
Pick another model while an agent is working and it moves over at its next step. Artifact cards in the chat now open in place when you click them.
Changing the model used to be refused while an agent was busy. Now the run moves to the new model at its next step and the conversation carries over.
Clicking an artifact in the chat shows its contents right there. Long files say they were cut and can be shown in Finder.