It looks like Microsoft is getting ready for GPT-5.

I reported yesterday that OpenAI is preparing to release GPT-5 in early August, and now references to a new GPT-5-powered “Smart Mode” have reportedly appeared in Copilot. Alexey Shavanov discovered code changes in Copilot that point toward a new smart option that uses GPT-5 to “think quickly or deeply.” Microsoft refused to comment on this alleged GPT-5 appearance.