Billing

XNova is pay as you go. Your balance works across every group, and each request is charged for what it actually uses.

How cost is calculated

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cost = official price × group multiplier

For example, usage worth $10.00 at official prices costs $2.50 in a 0.25× group.

A group decides which upstream route a request takes and its multiplier.
Each API key is bound to one group. Different keys can use different groups and all draw from the same balance.
Current multipliers are shown when you create a key.

Text models are billed by tokens: input, output, and cached input, multiplied by the group multiplier.

Images are billed per image by size tier and are not scaled by the text multiplier. gpt-image-2 tiers:

Prices for other image models such as gpt-image-2.5 are shown on the console.

Top up on the top-up page. The balance is available immediately.

The console's usage log shows the model, endpoint, tokens, image size and count, total cost, and actual charge for every request.