Good cloud GPU providers?
If I want to run hashcat on cloud GPUs. Which providers currenlty have good offers? Any (recent) experiences? Thanks.
AWS, GCP, Azure, Lambda, CoreWeave, etc. All provide GPUs in the cloud and I've used all of them in the past without issue. They are often not the cheapest though, and I'm sure you'll see others recommend or similar as being cheaper alternatives, but the trade off is running something on professionally built and maintained infrastructure like AWS vs where the hardware is crowdsourced from other users.
The JtR mailing list also recently noted Hostkey for cost efficiency for longer-running jobs. This is an "affiliate link" (which I assumes means that if you signed up, Openwall would get a small cut?):

If you'd rather not affiliate, you can trim the a_aid tag from the URL.