It is in Google Gemini, which I really hate to say - but I've been using a lot more than GPT. I reckon I'll be cancelling my Pro if Gemini stays with this lead for my everyday workflows.
How? I use the Gemini web app and don't see it.
AI Studio is borderline unusable for long conversations. I don't know what in the world it's doing but it sure looks like a catastrophic memory leak in the basic design.
I have been using it up to 100k tokens so far without issues. Never needed to go further than that. But much of that was in uploaded documents.