Is there *any* way to pay for a frontier #LLM API (#Claude #ChatGPT, etc) with a fixed funding source (gift card, check,...

Is there *any* way to pay for a frontier #LLM API (#Claude #ChatGPT, etc) with a fixed funding source (gift card, check, money order, bitcoin)?I also want to restrict training on my data. API access can do that.#Anthropic and #OpenAI both reject vanilla visa. They both offer "prepaid" credits, but your balance can still go negative, and they still require a debit/credit card that supports arbitrary charges, so its a bit of a sham.I don't want them to be able to drain my savings or checking if they make a billing mistake with a lot of zeros.AI gateways are possible, there are many options. Some have the same problems with funding or training.#LiteLLM ? #ollama cloud? Google #vertex ?Renting serious GPUs on AWS is another option, using #qwen #deepseek or #llama . AWS has its own problem with unlimited cost liability, but I trust them a bit more.It's seems impossible to do this, other than forming a company and getting a corporate debit card. I'd like to avoid that headache.