# Tutorials - [Payment methods](https://ai-docs.fptcloud.com/account/billing/tutorials/payment-methods.md) - [Billing policy](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy.md) - [GPU VM Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/gpu-vm-billing.md): For using GPU VM on the FPT AI Factory portal ONLY. - [GPU Container Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/gpu-container-billing.md) - [Model Hub Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/model-hub-billing.md) - [Model Finetuning Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/model-finetuning-billing.md) - [AI Inference Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/ai-inference-billing.md) - [AI Notebook Billing](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-policy/ai-notebook-billing.md) - [Billing plans](https://ai-docs.fptcloud.com/account/billing/tutorials/billing-plans.md) - [Create PAYG Tenant on AI Factory](https://ai-docs.fptcloud.com/account/billing/tutorials/create-payg-tenant-on-ai-factory.md) - [Manage balance](https://ai-docs.fptcloud.com/account/billing/tutorials/manage-balance.md) - [Top-up credits](https://ai-docs.fptcloud.com/account/billing/tutorials/top-up-credits.md) - [Redeem voucher](https://ai-docs.fptcloud.com/account/billing/tutorials/redeem-voucher.md) - [Set low balance threshold alert](https://ai-docs.fptcloud.com/account/billing/tutorials/set-low-balance-threshold-alert.md) - [Get my invoices](https://ai-docs.fptcloud.com/account/billing/tutorials/get-my-invoices.md) - [Credit history](https://ai-docs.fptcloud.com/account/billing/tutorials/credit-history.md) - [Voucher list](https://ai-docs.fptcloud.com/account/billing/tutorials/voucher-list.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ai-docs.fptcloud.com/account/billing/tutorials.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.