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FAQ ​

Nova inspecting a cable with a magnifying glass

Is XNova OpenAI compatible? ​

Yes, and Anthropic compatible too. Most clients use the OpenAI-compatible base URL:

txt
https://api.xnova.online/v1

Claude Code uses the Anthropic format with https://api.xnova.online (no /v1). See Claude Code.

Does my balance work for every group? ​

Yes. Each API key is bound to one group and billed at official price × group multiplier, all from one balance. To use another route, create another key with a different group.

What is the difference between the two nodes? ​

They share the same account, keys, and balance. Use api.xnova.online by default and switch to cf-api.xnova.online if the main node is slow.

Why does my client return 401? ​

Usually the API key was copied incorrectly, has extra spaces, or was deleted or disabled. Create a new key and try again.

Why does it say the model does not exist? ​

The key's group does not include that model, or the name is misspelled. Check the model list.

Why do requests fail occasionally? ​

  • Browser CORS errors: check Origin, CORS, and domain settings.
  • Insufficient balance: top up and retry.
  • Upstream errors: retry later, or ask an admin to check the account pool.
  • Content policy errors: rephrase the prompt.

Why is there no compression setting for PNG images? ​

output_compression only applies to JPEG and WebP. It is not sent for PNG.

Are images charged with the text multiplier? ​

No. Images are billed by size tier; text models use the group multiplier.

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