GCP or other AI Startup Cloud Credits

Wanted to see if anyone has any tips. We have an actual AI-based solution (not just wrappers) and can fund our work with our own investments, cashflow, 100k-300k, but it would also be great to get cloud credits from GCP, AWS, etc. The problem is for the "Scale" tier they have these requirements where for AI, we need an incubator/accelerator support, which we don't have. We have applied to places like YC, but rejected, but despite that we can fund our work, our own + government, and wanted to see if there are other ways to get at this cloud credit. Thank you all