What models are my custom GPTs using?

If you have it, the MacOS desktop application also has the below functionality. By selecting ‘See Details’ from the conversation options dropdown, you can view the custom instructions that were set, and the model(s) used during the conversations. This also applies to GPT conversations.

I have no idea if this will be extended to the web interface, but it has proven pretty useful so far. So, I hope they intend to release it more broadly.