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Q&A
Concise answers to real questions: how to use it, how to call it, how pricing works.
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How do I call gpt-5.4, and how is it priced?
How to call gpt-5.4 through NexusAPI and how billing works — OpenAI-compatible protocol, billed per token, anchored to official pricing, up to 30% off.
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How do I use the Claude API (via a proxy)?
A concise way to use the Claude API through NexusAPI — compatible with the official Anthropic protocol; just swap the Base URL to call the full Claude lineup.