Comment by ALLTaken

Exactly my experience too and it's soo annoying. It doesn't matter how you prompt it or what your system prompt is. It tries to end the session as early as possible, claiming to have fulfilled everything. Although it just causes more work for the user, less for itself. The tokens saved are easily multiplied by the amount you have to prompt it again.

This I experienced partially in DeepSeek since their recent update too, not as aggresively as in Gemini 2.5 Pro, but similar lazyness or cleverness, if you may call that clever.