Is Google GPU free?

Hello there, I'm curious to know about the availability of Google GPU services. Specifically, I'm wondering if there's a way to access or utilize Google's GPU resources for free. Could you please clarify if Google offers any GPU services that are available without any cost to the user? And if so, what are the limitations or restrictions that come with using these free GPU resources? I'm eager to learn more about this topic and how it might benefit my projects or research endeavors. Thank you in advance for your insights.