Has anyone else noticed ChatGPT Thinking stopping after ~26 minutes?

Hi,

I’ve noticed something strange over the last few days. When I use ChatGPT Thinking for a long or complex task, it seems to stop after roughly 25–26 minutes, even when the task is clearly not finished.

Previously, I had similar tasks that could run for much longer.

I also noticed that longer tasks seem to work differently in ChatGPT Work.

Is anyone else seeing the same thing? Is the ~26-minute cutoff a known limitation, a temporary bug, or some recent change in how long-running tasks are handled?

One possibly silly question: since Work uses quotas/credits differently, could there be any connection with how these long tasks are now being handled, or am I misunderstanding how it works?

I’m just trying to understand whether this is expected behavior or not.

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