Billing & Top-ups

Prepaid balance model

ru-llm uses a prepaid credit system. There is no subscription or monthly fee. You deposit funds in advance and are charged only for the tokens you actually consume.

• Balance is denominated in USD.
• Charges are per-request based on actual input and output tokens.
• Unused balance carries over indefinitely — it does not expire.

Topping up

1. Go to console → Billing.
2. Click Top up.
3. Select your deposit amount.
4. Complete payment via crypto / USDT using the provided wallet address or payment link.
5. Your balance updates once the transaction is confirmed on-chain.

Note

Top-ups via USDT are final and non-refundable once the on-chain transaction is confirmed. Contact support if you encounter payment issues.

How you’re charged

Each API request deducts from your balance based on:

Token type	Rate
Input tokens	Per-model rate (see Pricing page)
Output tokens	Per-model rate (see Pricing page)
Cache read tokens	Reduced rate for supporting models
Cache write tokens	Per-model rate for supporting models

The usage field in every API response shows the token counts for that request. See Models & Pricing for more detail.

Insufficient balance

If your balance reaches zero, API requests return a 402 Payment Required error. Top up your balance to resume service.

Viewing usage

Your current balance and recent usage are visible on the console dashboard.