It took me quite a while to come round to OpenRouter. Originally I didn't understand why anyone would put a proxy between them and an LLM, but it actually adds some quite significant value: 1. By far the lowest friction way to support and try out all the models. 2. They offer billing caps! Most model providers still don't do this [EDIT: maybe they do, see reply comment], but if you're going to run anything in public…
Both OpenAI and Anthropic have billing caps… who doesn’t?
Deepseek has a prepaid model. (Pretty impressive, what fits into 10 Dollar)