Hmm… I think you may be mixing up the ZeroGPU quota with Inference Providers credits:
The 24-hour reset applies to the daily GPU-time quota for ZeroGPU Spaces. HuggingChat is different: the current HuggingChat Omni service is powered by Hugging Face Inference Providers, and Free users consume their monthly inference credits when using it.
The relevant public references are:
So, if your monthly included credits were exhausted earlier in July 2026, not using HuggingChat for a week would not replenish them. Under the reset timing described by the HF staff reply, the next reset would be August 1, 2026, rather than 24 hours after your last HuggingChat message.
The quickest way to distinguish this from a bug is to open your Inference Providers settings and usage overview. The official documentation says this page shows the previous month’s usage broken down by model and provider.
The fact that the question was simple mathematics does not necessarily change this. A small prompt may cost less than a large one, but it cannot restore an account-level monthly allowance that has already been exhausted.
ZeroGPU and Inference Providers are separate systemsSo my default interpretation would be: this is probably the monthly Inference Providers allowance used by HuggingChat, not the daily ZeroGPU Spaces quota. The Inference Providers usage page should separate those two cases in one step. If that page still shows available credits, then the popup is evidence of a separate issue rather than an expected 24-hour reset.